"Year","Month","Value"
1971,1,1.0118
1971,2,1.0075
1971,3,1.0064
1971,4,1.0077
1971,5,1.0087
1971,6,1.0213
1971,7,1.0213
1971,8,1.013
1971,9,1.013
1971,10,1.0047
1971,11,1.0039
1971,12,.9993
1972,1,1.0059
1972,2,1.0047
1972,3,.9985
1972,4,.9957
1972,5,.9889
1972,6,.9795
1972,7,.984
1972,8,.9824
1972,9,.983
1972,10,.9827
1972,11,.9874
1972,12,.9968
1973,1,.9993
1973,2,.9956
1973,3,.9967
1973,4,1.0007
1973,5,1.0008
1973,6,.9984
1973,7,.9995
1973,8,1.0039
1973,9,1.0083
1973,10,1.0011
1973,11,.9991
1973,12,.9994
1974,1,.9915
1974,2,.9766
1974,3,.972
1974,4,.9676
1974,5,.9623
1974,6,.9664
1974,7,.9763
1974,8,.9799
1974,9,.9864
1974,10,.983
1974,11,.9874
1974,12,.9882
1975,1,.9948
1975,2,1.0004
1975,3,1.0005
1975,4,1.011
1975,5,1.0286
1975,6,1.0264
1975,7,1.0309
1975,8,1.0354
1975,9,1.0263
1975,10,1.0251
1975,11,1.0139
1975,12,1.0139
1976,1,1.0065
1976,2,.9935
1976,3,.9859
1976,4,.9836
1976,5,.9802
1976,6,.9736
1976,7,.9722
1976,8,.9854
1976,9,.9751
1976,10,.9727
1976,11,.9859
1976,12,1.0183
1977,1,1.0103
1977,2,1.0279
1977,3,1.0513
1977,4,1.0515
1977,5,1.0486
1977,6,1.0577
1977,7,1.0612
1977,8,1.075
1977,9,1.0733
1977,10,1.0989
1977,11,1.1093
1977,12,1.0973
1978,1,1.1012
1978,2,1.113
1978,3,1.1258
1978,4,1.1417
1978,5,1.1186
1978,6,1.1218
1978,7,1.1246
1978,8,1.1404
1978,9,1.1664
1978,10,1.1828
1978,11,1.1731
1978,12,1.1798
1979,1,1.1899
1979,2,1.1956
1979,3,1.1739
1979,4,1.1464
1979,5,1.1556
1979,6,1.1724
1979,7,1.1639
1979,8,1.1706
1979,9,1.1653
1979,10,1.1754
1979,11,1.1797
1979,12,1.17
1980,1,1.164
1980,2,1.1555
1980,3,1.1731
1980,4,1.1861
1980,5,1.1741
1980,6,1.1516
1980,7,1.1523
1980,8,1.1592
1980,9,1.1647
1980,10,1.1691
1980,11,1.1864
1980,12,1.1968
1981,1,1.1909
1981,2,1.1984
1981,3,1.1914
1981,4,1.191
1981,5,1.201
1981,6,1.2041
1981,7,1.2107
1981,8,1.2232
1981,9,1.2008
1981,10,1.2029
1981,11,1.1872
1981,12,1.1851
1982,1,1.1926
1982,2,1.214
1982,3,1.2205
1982,4,1.2252
1982,5,1.2336
1982,6,1.2756
1982,7,1.27
1982,8,1.2452
1982,9,1.2348
1982,10,1.2301
1982,11,1.2262
1982,12,1.2385
1983,1,1.2287
1983,2,1.2277
1983,3,1.2263
1983,4,1.2325
1983,5,1.2292
1983,6,1.2323
1983,7,1.2323
1983,8,1.2338
1983,9,1.2326
1983,10,1.232
1983,11,1.2367
1983,12,1.2469
1984,1,1.2484
1984,2,1.248
1984,3,1.2697
1984,4,1.2796
1984,5,1.2944
1984,6,1.304
1984,7,1.3238
1984,8,1.3035
1984,9,1.3145
1984,10,1.319
1984,11,1.3168
1984,12,1.3201
1985,1,1.324
1985,2,1.3547
1985,3,1.384
1985,4,1.3658
1985,5,1.3756
1985,6,1.3676
1985,7,1.3526
1985,8,1.3575
1985,9,1.3703
1985,10,1.3667
1985,11,1.3765
1985,12,1.3955
1986,1,1.407
1986,2,1.4043
1986,3,1.4009
1986,4,1.3879
1986,5,1.3757
1986,6,1.3899
1986,7,1.3808
1986,8,1.3885
1986,9,1.3873
1986,10,1.3885
1986,11,1.3863
1986,12,1.3801
1987,1,1.3606
1987,2,1.334
1987,3,1.3194
1987,4,1.3192
1987,5,1.3411
1987,6,1.3387
1987,7,1.3262
1987,8,1.3256
1987,9,1.3154
1987,10,1.3097
1987,11,1.3167
1987,12,1.3075
1988,1,1.2855
1988,2,1.2682
1988,3,1.2492
1988,4,1.2353
1988,5,1.2373
1988,6,1.2176
1988,7,1.2075
1988,8,1.2237
1988,9,1.2267
1988,10,1.2055
1988,11,1.2186
1988,12,1.1962
1989,1,1.1913
1989,2,1.1891
1989,3,1.1954
1989,4,1.1888
1989,5,1.1925
1989,6,1.1986
1989,7,1.1891
1989,8,1.1758
1989,9,1.1828
1989,10,1.1749
1989,11,1.1697
1989,12,1.1613
1990,1,1.172
1990,2,1.1965
1990,3,1.18
1990,4,1.1641
1990,5,1.1747
1990,6,1.173
1990,7,1.157
1990,8,1.1448
1990,9,1.1583
1990,10,1.16
1990,11,1.1635
1990,12,1.1603
1991,1,1.156
1991,2,1.1549
1991,3,1.1572
1991,4,1.1535
1991,5,1.1499
1991,6,1.1439
1991,7,1.1493
1991,8,1.1452
1991,9,1.137
1991,10,1.1279
1991,11,1.1302
1991,12,1.1467
1992,1,1.1571
1992,2,1.1825
1992,3,1.1928
1992,4,1.1874
1992,5,1.1991
1992,6,1.196
1992,7,1.1924
1992,8,1.1907
1992,9,1.2225
1992,10,1.2453
1992,11,1.2674
1992,12,1.2725
1993,1,1.2779
1993,2,1.2602
1993,3,1.2471
1993,4,1.2621
1993,5,1.2698
1993,6,1.2789
1993,7,1.282
1993,8,1.308
1993,9,1.3215
1993,10,1.3263
1993,11,1.3174
1993,12,1.3308
1994,1,1.3173
1994,2,1.3424
1994,3,1.3644
1994,4,1.383
1994,5,1.3808
1994,6,1.3836
1994,7,1.3826
1994,8,1.3783
1994,9,1.354
1994,10,1.3503
1994,11,1.3647
1994,12,1.3893
1995,1,1.4132
1995,2,1.4005
1995,3,1.4077
1995,4,1.3762
1995,5,1.3609
1995,6,1.3775
1995,7,1.3612
1995,8,1.3552
1995,9,1.3509
1995,10,1.3458
1995,11,1.3534
1995,12,1.3693
1996,1,1.3669
1996,2,1.3752
1996,3,1.3656
1996,4,1.3592
1996,5,1.3693
1996,6,1.3658
1996,7,1.3697
1996,8,1.3722
1996,9,1.3694
1996,10,1.3508
1996,11,1.3381
1996,12,1.3622
1997,1,1.3494
1997,2,1.3556
1997,3,1.3725
1997,4,1.3942
1997,5,1.3804
1997,6,1.3843
1997,7,1.3775
1997,8,1.3905
1997,9,1.3872
1997,10,1.3869
1997,11,1.4128
1997,12,1.4271
1998,1,1.4409
1998,2,1.4334
1998,3,1.4166
1998,4,1.4298
1998,5,1.4452
1998,6,1.4655
1998,7,1.4869
1998,8,1.5346
1998,9,1.5218
1998,10,1.5452
1998,11,1.5404
1998,12,1.5433
1999,1,1.5194
1999,2,1.4977
1999,3,1.5176
1999,4,1.4881
1999,5,1.4611
1999,6,1.4695
1999,7,1.489
1999,8,1.4932
1999,9,1.4771
1999,10,1.4776
1999,11,1.4674
1999,12,1.4722
2000,1,1.4486
2000,2,1.4512
2000,3,1.4608
2000,4,1.4689
2000,5,1.4957
2000,6,1.477
2000,7,1.4778
2000,8,1.4828
2000,9,1.4864
2000,10,1.5125
2000,11,1.5426
2000,12,1.5219
2001,1,1.5032
2001,2,1.5216
2001,3,1.5587
2001,4,1.5578
2001,5,1.5411
2001,6,1.5245
2001,7,1.5308