YEAR PROD
1960 0.197
1961 0.235
1962 0.268
1963 0.288
1964 0.31
1965 0.341
1966 0.37
1967 0.405
1968 0.436
1969 0.478
1970 0.538
1971 0.579
1972 0.668
1973 0.772
1974 0.73
1975 0.633
1976 0.586
1977 0.588
1978 0.575
1979 0.646
1980 0.644
1981 0.588
1982 0.58
1983 0.606
1984 0.648
1985 0.661
1986 0.659
1987 0.695
1988 0.73
1989 0.715
1990 0.717
1991 0.723
1992 0.752
1993 0.798
1994 0.83
1995 0.876
1996 0.905
1997 0.945
1998 0.975
1999 0.994
2000 1.008
2001 1.022
2002 1.031
2003 1.038
2004 1.044
2005 1.05
2006 1.056
2007 1.062
2008 1.067
2009 1.068
2010 1.068
2011 1.068
2012 1.065
2013 1.056
2014 1.047
2015 1.032
2016 1.017
2017 0.999
2018 0.979
2019 0.958
2020 0.935
2021 0.911
2022 0.889
2023 0.863
2024 0.839
2025 0.814
2026 0.788
2027 0.762
2028 0.737
2029 0.71
2030 0.684
2031 0.658
2032 0.632
2033 0.607
2034 0.582
2035 0.557
2036 0.532
2037 0.508
2038 0.487
2039 0.465