YEAR PROD
1960 0.0070
1961 0.0200
1962 0.0260
1963 0.0270
1964 0.0440
1965 0.1000
1966 0.1530
1967 0.1170
1968 0.0530
1969 0.1970
1970 0.3960
1971 0.5600
1972 0.6600
1973 0.7500
1974 0.8200
1975 0.6500
1976 0.7500
1977 0.7600
1978 0.6900
1979 0.8400
1980 0.7500
1981 0.5300
1982 0.4700
1983 0.4500
1984 0.5100
1985 0.5500
1986 0.5300
1987 0.4840
1988 0.5270
1989 0.6260
1990 0.6610
1991 0.6900
1992 0.7120
1993 0.7250
1994 0.7260
1995 0.7300
1996 0.7850
1997 0.8340
1998 0.8700
1999 0.8950
2000 0.9150
2001 0.9300
2002 0.9450
2003 0.9500
2004 0.9550
2005 0.9500
2006 0.9450
2007 0.9350
2008 0.9300
2009 0.9200
2010 0.9050
2011 0.8900
2012 0.8700
2013 0.8450
2014 0.8200
2015 0.7900
2016 0.7600
2017 0.7300
2018 0.7000
2019 0.6650
2020 0.6350
2021 0.6050
2022 0.5750
2023 0.5500
2024 0.5250
2025 0.5050
2026 0.4850
2027 0.4650
2028 0.4500
2029 0.4350
2030 0.4200
2031 0.4050
2032 0.3900
2033 0.3750
2034 0.3600
2035 0.3500
2036 0.3400
2037 0.3300
2038 0.3200
2039 0.3100