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 0.7810
1997 0.8410
1998 0.7870
1999 0.8020
2000 0.8500
2001 0.8900
2002 0.9130
2003 0.9250
2004 0.9310
2005 0.9220
2006 0.9080
2007 0.8900
2008 0.8900
2009 0.9000
2010 0.9050
2011 0.9050
2012 0.8950
2013 0.8750
2014 0.8450
2015 0.8100
2016 0.7750
2017 0.7500
2018 0.7150
2019 0.6900
2020 0.6650
2021 0.6400
2022 0.6150
2023 0.5900
2024 0.5650
2025 0.5400
2026 0.5100
2027 0.4800
2028 0.4550
2029 0.4300
2030 0.4050
2031 0.3800
2032 0.3600
2033 0.3400
2034 0.3150
2035 0.2950
2036 0.2750
2037 0.2600
2038 0.2450
2039 0.2300