YEAR PROD
1960 2.9070
1961 2.9840
1962 3.0480
1963 3.1540
1964 3.2010
1965 3.2900
1966 3.4970
1967 3.7300
1968 3.8690
1969 3.9530
1970 4.1230
1971 4.0730
1972 4.0830
1973 3.9970
1974 3.8270
1975 3.6540
1976 3.5530
1977 3.6010
1978 3.7500
1979 3.6990
1980 3.7120
1981 3.7160
1982 3.7230
1983 3.7390
1984 3.8360
1985 3.8620
1986 3.7340
1987 3.6300
1988 3.5640
1989 3.3430
1990 3.2540
1991 3.3120
1992 3.2380
1993 3.1340
1994 3.0620
1995 3.0370
1996 3.0280
1997 3.0190
1998 2.9180
1999 2.8140
2000 2.7230
2001 2.6250
2002 2.5200
2003 2.4150
2004 2.3250
2005 2.2250
2006 2.1130
2007 2.0130
2008 1.8900
2009 1.7930
2010 1.7000
2011 1.5960
2012 1.5020
2013 1.4250
2014 1.3260
2015 1.2520
2016 1.1840
2017 1.1220
2018 1.0590
2019 1.0010
2020 0.9500
2021 0.8960
2022 0.8480
2023 0.7980
2024 0.7500
2025 0.7050
2026 0.6580
2027 0.6140
2028 0.5750
2029 0.5420
2030 0.5110
2031 0.4820
2032 0.4560
2033 0.4320
2034 0.4080
2035 0.3880
2036 0.3680
2037 0.3500
2038 0.3340
2039 0.3200