1950
0.328906
1.010448102
3
1951
0.221016
0.77186073
3
1952
0.456581
0.541193486
3
1953
0.117653
0.510046493
3
1954
0.053044
0.612902247
3
1955
0.305479
0.803845685
3
1956
0.338189
0.970110232
3
1957
0.243633
0.616495004
8
1958
0.48921
0.545916448
9
1959
0.369254
0.700112502
9
1960
0.371924
0.724464848
9
1961
0.265533
0.660955682
12
1962
0.509869
0.595540592
12
1963
0.64242
0.5609263
14
1964
0.491924
0.631182086
14
1965
0.456085
0.743263612
14
1966
0.566831
1.05488654
15
1967
0.5891
0.971759263
16
1968
0.637905
1.094769842
16
1969
0.770681
1.322853184
17
1970
0.94424
1.267421466
19
1971
0.984914
1.037627732
21
1972
0.972289
1.021446866
21
1973
0.94013
0.836116794
22
1974
0.91532
0.894794164
25
1975
0.991283
0.758904085
25
1976
1.042124
0.642353697
25
1977
0.968892
0.515219411
26
1978
0.748783
0.368339389
27
1979
0.687164
0.437779639
27
1980
0.780902
0.492727328
29
1981
0.856827
0.677742512
32
1982
0.810191
0.624584375
34
1983
0.937017
0.573704323
34
1984
0.959863
0.514633581
35
1985
0.894157
0.550256742
35
1986
1.077398
0.414791505
36
1987
1.131241
0.50568618
37
1988
1.012782
0.51963031
38
1989
1.043973
0.337652562
38
1990
1.021941
0.334726907
38
1991
0.98917
0.246245348
40
1992
0.965219
0.296959918
40
1993
0.90451
0.346355833
41
1994
0.954124
0.369304448
41
1995
1.009986
0.344282905
41
1996
1.025912
0.432935815
41
1997
1.259608
0.374558331
41
1998
1.19843
0.355488941
41
1999
1.185377
0.152069899
41
2000
1.074978
0.08864302
41
2001
0.978472
0.210080256
41
2002
1.017042
0.290138146
41
2003
0.857162
0.325870692
41
2004
0.794018
0.318509741
41
2005
0.800427
0.317931218
41
2006
0.674803
0.218959882
41
2007
0.625845
0.196743211
41
2008
0.4869
0.264737379
41
2009
0.407588
0.345323278
41
2010
0.313986
0.42064159
41
2011
0.206209
0.678006834
41
2012
0.186412
0.654355469
41