year      msl_ib_ns(mm) #version_2011_rel1
1992.9323   -5.083
1992.9595  -14.721
1992.9866  -18.885
1993.0138  -20.521
1993.0409  -19.904
1993.0681  -17.546
1993.0952  -17.750
1993.1223  -14.405
1993.1495  -14.120
1993.1766  -17.141
1993.2038  -13.977
1993.2309  -10.266
1993.2852  -12.258
1993.3124  -10.866
1993.3395  -14.493
1993.3667  -13.996
1993.3938  -13.717
1993.4210  -10.623
1993.4481  -10.821
1993.4753  -12.694
1993.5024  -13.945
1993.5296  -11.932
1993.5839  -11.083
1993.6110  -12.555
1993.6382  -12.799
1993.6653  -15.042
1993.6925  -12.601
1993.7196  -11.785
1993.7468   -9.444
1993.7739   -7.970
1993.8010  -13.536
1993.8553  -14.844
1993.8825  -12.396
1993.9096  -11.068
1993.9368  -12.141
1993.9639   -8.659
1993.9911  -12.735
1994.0182  -13.056
1994.0454   -6.526
1994.0725   -6.558
1994.0997  -12.580
1994.1268  -16.752
1994.1540  -19.275
1994.1811   -8.261
1994.2354   -5.515
1994.2626  -10.816
1994.2897  -12.103
1994.3169  -12.691
1994.3440  -11.101
1994.3712   -9.630
1994.3983  -14.626
1994.4255  -13.320
1994.4526  -13.903
1994.5069  -12.542
1994.5340   -9.112
1994.5612   -8.912
1994.5883  -11.104
1994.6155  -16.055
1994.6426  -15.677
1994.6698  -12.858
1994.6969   -7.243
1994.7241   -9.801
1994.7512  -15.153
1994.7784  -17.415
1994.8055  -12.301
1994.8327  -12.053
1994.8870  -12.958
1994.9141  -19.554
1994.9413  -17.629
1994.9684  -12.011
1994.9956   -7.401
1995.0227   -4.330
1995.0499   -7.757
1995.0770   -7.091
1995.1042  -13.283
1995.1313  -17.328
1995.1585   -8.262
1995.2128   -3.316
1995.2399  -14.993
1995.2670  -14.293
1995.2942  -12.515
1995.3213   -8.433
1995.3756  -12.435
1995.4028  -11.772
1995.4299  -11.711
1995.4571  -11.222
1995.4842   -9.507
1995.5657  -14.363
1995.5928  -14.884
1995.6200  -11.794
1995.6471  -10.592
1995.6743   -8.098
1995.7014   -7.906
1995.7286   -8.007
1995.7557  -14.847
1995.7829  -12.133
1995.8372   -9.411
1995.8643  -10.299
1995.8915  -11.678
1995.9458  -12.800
1995.9729   -3.197
1996.0000   -6.778
1996.0272  -12.262
1996.0543  -15.510
1996.0815  -17.140
1996.1086   -8.384
1996.1629   -3.607
1996.1901  -10.809
1996.2172  -12.461
1996.2444  -12.326
1996.2715   -9.292
1996.2987   -5.402
1996.3258   -4.276
1996.3530   -8.968
1996.3801  -10.559
1996.4073  -10.020
1996.4344   -6.223
1996.4887   -2.091
1996.5159   -5.239
1996.5430   -7.212
1996.5702   -5.161
1996.5973   -4.618
1996.6245   -4.261
1996.6516   -5.805
1996.6788   -9.906
1996.7059  -11.134
1996.7330  -10.469
1996.7602   -7.235
1996.8145   -7.764
1996.8416   -6.141
1996.8688  -10.050
1996.8959  -13.502
1996.9231   -5.947
1996.9502   -2.109
1996.9774   -3.734
1997.0045   -9.152
1997.0317  -11.543
1997.0588  -12.554
1997.0860   -5.264
1997.1403   -5.410
1997.1674  -10.514
1997.1946  -13.068
1997.2217   -8.940
1997.2489   -2.654
1997.2760    0.880
1997.3032   -5.558
1997.3303   -9.045
1997.3575   -4.109
1997.3846   -7.163
1997.4118    0.322
1997.4660    1.276
1997.4932   -0.595
1997.5203   -0.476
1997.5475    1.476
1997.5746    5.507
1997.6289    1.329
1997.6561    1.995
1997.6832   -0.348
1997.7104    2.752
1997.7375   10.142
1997.7918    5.440
1997.8190    1.172
1997.8461    2.146
1997.8733    2.075
1997.9004    4.827
1997.9276    7.506
1997.9547    1.064
1997.9819    1.067
1998.0090   -3.911
1998.0362    2.033
1998.0905    5.705
1998.1176    3.497
1998.1448    0.339
1998.1719   -2.903
1998.1990    4.712
1998.2262    5.826
1998.2533    9.072
1998.2805    6.729
1998.3076    1.888
1998.3348    3.648
1998.3619    1.776
1998.4162    3.692
1998.4434    2.721
1998.4705   -1.480
1998.4977   -0.147
1998.5248    1.073
1998.5520    1.720
1998.6063   -1.942
1998.6334   -6.334
1998.6606   -2.196
1998.6877    0.485
1998.7149    3.239
1998.7420    2.679
1998.7692    0.053
1998.8235   -1.422
1998.8506   -0.340
1998.8777    7.147
1998.9049   -0.114
1998.9320    6.494
1998.9592   -0.766
1998.9863   -0.490
1999.0135    2.253
1999.0406    7.980
1999.0949    0.386
1999.1492   -0.744
1999.1764    5.413
1999.2035    4.287
1999.2307    6.217
1999.2578    0.544
1999.2850   -1.234
1999.3393    3.592
1999.3664    4.841
1999.3936    2.134
1999.4207    4.341
1999.4479   -2.549
1999.4750   -2.365
1999.5022    2.228
1999.5293    5.309
1999.5565    5.847
1999.5836    1.566
1999.6107   -1.877
1999.6379    3.843
1999.6922    5.513
1999.7193    8.207
1999.7465    3.810
1999.7736    5.685
1999.8008    3.008
1999.8279    7.448
1999.8551    8.974
1999.8822    8.150
1999.9094    1.682
1999.9637    7.498
1999.9908   10.331
2000.0180    8.209
2000.0451    7.507
2000.0723    6.418
2000.0994   -0.436
2000.1266    4.751
2000.1537   11.443
2000.1809   11.312
2000.2080    6.611
2000.2352    8.136
2000.2895    6.071
2000.3166    7.230
2000.3437    6.133
2000.3709    4.774
2000.3980    3.507
2000.4252    3.029
2000.4523    2.799
2000.4795    4.138
2000.5066    5.794
2000.5338    7.587
2000.5881   -1.279
2000.6152    6.812
2000.6424   12.071
2000.6695    6.658
2000.6967    5.909
2000.7238    7.704
2000.7510    8.881
2000.7781   10.846
2000.8053   11.220
2000.8596   11.347
2000.8867    6.625
2000.9139    8.315
2000.9410    6.049
2000.9682   11.108
2000.9953   13.151
2001.0225    7.454
2001.0767    5.987
2001.1039   12.230
2001.1310   11.550
2001.1582   15.616
2001.1853   12.480
2001.2125    7.067
2001.2396   10.204
2001.2668   11.526
2001.2939   17.537
2001.3211   13.960
2001.3482    8.968
2001.3754    8.325
2001.4025    6.646
2001.4297   10.425
2001.4568   11.547
2001.4840   14.693
2001.5111   14.573
2001.5383   12.211
2001.5654    9.184
2001.5926   16.833
2001.6197   16.117
2001.6469   13.090
2001.6740   12.382
2001.7012   12.602
2001.7283   14.013
2001.7555   18.833
2001.7826   16.796
2001.8097   13.792
2001.8369   14.735
2001.8640   14.055
2001.8912   12.675
2001.9183   14.079
2001.9455   14.293
2001.9726   14.932
2001.9998   14.005
2002.0269    8.485
2002.0541   10.431
2002.0812   18.158
2002.1084   20.812
2002.1355   19.719
2002.1627   14.113
2002.1898    8.588
2002.2170   12.173
2002.2441   14.879
2002.2713   21.216
2002.2984   16.193
2002.3256   15.905
2002.3527   11.575
2002.3799   13.698
2002.4070   17.572
2002.4342   16.421
2002.4613   14.947
2002.4885   17.265
2002.5156   15.235
2002.5427   17.185
2002.5699   21.428
2002.5970   24.992
2002.6242   24.779
2002.6513   17.902
2002.6785   14.042
2002.7056   17.280
2002.7328   21.551
2002.7599   20.872
2002.7871   22.503
2002.8142   24.414
2002.8414   14.576
2002.8685   18.582
2002.8957   23.786
2002.9228   22.508
2002.9500   20.853
2002.9771   18.510
2003.0043   16.440
2003.0314   15.997
2003.0586   24.719
2003.0857   27.086
2003.1129   25.622
2003.1400   14.993
2003.1672   16.855
2003.1943   19.309
2003.2214   23.760
2003.2486   24.467
2003.2757   19.081
2003.3029   16.636
2003.3300   16.881
2003.3572   17.639
2003.3843   21.517
2003.4115   22.961
2003.4386   16.709
2003.4658   16.816
2003.4929   15.013
2003.5201   17.879
2003.5472   23.194
2003.5744   21.743
2003.6015   20.433
2003.6287   14.394
2003.6558   15.960
2003.6830   22.921
2003.7101   24.532
2003.7373   21.522
2003.7644   22.289
2003.7916   16.204
2003.8187   17.622
2003.8459   19.434
2003.8730   22.644
2003.9273   22.192
2003.9544   18.803
2003.9816   16.810
2004.0087   21.290
2004.0359   28.888
2004.0630   27.604
2004.0902   23.324
2004.1173   11.648
2004.1716   23.772
2004.1988   25.413
2004.2259   24.683
2004.2531   22.858
2004.2802   19.679
2004.3074   24.682
2004.3345   19.704
2004.3617   22.127
2004.3888   20.051
2004.4160   18.224
2004.4431   15.858
2004.4703   20.155
2004.4974   26.842
2004.5246   28.046
2004.5517   24.672
2004.5789   17.311
2004.6060   19.928
2004.6332   21.466
2004.6603   23.970
2004.6874   27.529
2004.7146   27.654
2004.7417   19.089
2004.7689   19.008
2004.7960   21.244
2004.8232   22.736
2004.8503   24.655
2004.8775   26.357
2004.9046   18.787
2004.9318   20.508
2004.9589   24.003
2004.9861   33.438
2005.0132   27.204
2005.0404   22.954
2005.0675   23.163
2005.0947   22.729
2005.1218   25.119
2005.1490   28.332
2005.1761   34.882
2005.2033   31.253
2005.2304   19.858
2005.2576   19.778
2005.2847   28.211
2005.3119   24.718
2005.3390   27.733
2005.3662   27.580
2005.3933   24.484
2005.4204   22.843
2005.4476   25.115
2005.4747   29.985
2005.5019   30.277
2005.5290   27.581
2005.5562   22.858
2005.5833   27.442
2005.6105   24.490
2005.6376   25.818
2005.6648   29.334
2005.6919   26.725
2005.7734   25.973
2005.8005   28.565
2005.8277   28.337
2005.8548   30.053
2005.8820   28.546
2005.9091   29.927
2005.9363   29.649
2005.9634   34.699
2005.9906   33.482
2006.0177   25.904
2006.0449   22.590
2006.0720   25.011
2006.0992   28.688
2006.1263   30.002
2006.1534   28.649
2006.1806   30.739
2006.2077   20.064
2006.2349   23.250
2006.2620   27.023
2006.2892   28.687
2006.3163   24.941
2006.3435   23.661
2006.3706   25.653
2006.3978   28.343
2006.4249   27.413
2006.4521   30.599
2006.4792   31.995
2006.5064   28.898
2006.5335   27.292
2006.5607   29.294
2006.5878   31.698
2006.6150   28.655
2006.6421   30.242
2006.6693   28.939
2006.6964   27.166
2006.7236   28.870
2006.7507   30.405
2006.7779   32.693
2006.8050   33.335
2006.8864   30.088
2006.9136   28.621
2006.9407   36.214
2006.9679   30.997
2006.9950   26.838
2007.0222   23.133
2007.0493   23.048
2007.0765   31.094
2007.1036   31.684
2007.1308   28.134
2007.1579   30.423
2007.1851   23.811
2007.2122   24.870
2007.2394   29.455
2007.2665   35.983
2007.2937   30.682
2007.3208   26.432
2007.3480   21.586
2007.3751   27.518
2007.4023   31.445
2007.4294   30.875
2007.4566   29.818
2007.4837   27.196
2007.5109   24.068
2007.5380   26.052
2007.5651   29.188
2007.5923   29.560
2007.6194   30.150
2007.6466   22.815
2007.6737   21.051
2007.7009   24.130
2007.7280   30.298
2007.7552   31.040
2007.7823   28.858
2007.8095   24.740
2007.8366   23.261
2007.8638   31.195
2007.8909   35.719
2007.9181   34.487
2007.9452   30.665
2007.9724   24.150
2007.9995   23.184
2008.0267   29.145
2008.0538   34.870
2008.0810   34.438
2008.1081   24.269
2008.1353   26.457
2008.1624   23.983
2008.1896   29.232
2008.2167   33.307
2008.2439   32.075
2008.2710   28.994
2008.2981   26.694
2008.3253   24.680
2008.3796   37.514
2008.4067   36.459
2008.4339   33.440
2008.4610   32.668
2008.4882   33.209
2008.5153   34.409
2008.5425   35.470
2008.5696   34.519
2008.5968   30.338
2008.6239   29.016
2008.6511   26.875
2008.6782   30.821
2008.7054   29.811
2008.7325   29.986
2008.7868   26.159
2008.8140   26.572
2008.8411   30.841
2008.8683   34.340
2008.8954   32.017
2008.9226   33.841
2008.9497   29.603
2008.9769   27.834
2009.0040   32.574
2009.0311   36.698
2009.0583   39.251
2009.0854   29.189
2009.1126   26.739
2009.1397   32.624
2009.1669   35.718
2009.1940   37.628
2009.2212   36.388
2009.2483   32.682
2009.2755   30.409
2009.3026   32.394
2009.3298   35.362
2009.3569   40.598
2009.3841   35.140
2009.4112   28.905
2009.4384   32.464
2009.4655   34.292
2009.4927   34.169
2009.5198   35.380
2009.5470   34.468
2009.5741   37.832
2009.6013   31.503
2009.6284   33.627
2009.6556   39.703
2009.6827   40.382
2009.7099   38.957
2009.7370   36.335
2009.7642   33.160
2009.7913   35.608
2009.8184   41.769
2009.8456   44.264
2009.8727   38.410
2009.8999   34.820
2009.9270   33.711
2009.9542   35.978
2009.9813   43.693
2010.0085   39.638
2010.0356   38.256
2010.0628   31.337
2010.0899   28.425
2010.1171   37.143
2010.1442   44.369
2010.1714   45.768
2010.1985   33.523
2010.2257   31.283
2010.2528   33.294
2010.2800   34.039
2010.3071   38.882
2010.3343   39.845
2010.3614   37.040
2010.3886   35.764
2010.4157   35.661
2010.4429   39.720
2010.4700   44.091
2010.4971   42.455
2010.5243   36.483
2010.5786   35.589
2010.6057   34.986
2010.6329   42.063
2010.6600   37.204
2010.6872   32.385
2010.7143   31.791
2010.7415   31.270
2010.7686   30.772
2010.7958   38.976
2010.8229   38.046
2010.8501   32.141
2010.8772   30.377
2010.9044   28.500
2010.9315   35.059
2010.9587   38.030
2010.9858   36.970
2011.0130   33.779
2011.0401   30.438
2011.0673   30.809