YEAR PROD
1960 0.4540
1961 0.5070
1962 0.5570
1963 0.5950
1964 0.6310
1965 0.7390
1966 0.8740
1967 0.9490
1968 1.0330
1969 1.1100
1970 1.3140
1971 1.6590
1972 2.1120
1973 2.7160
1974 3.0480
1975 2.5440
1976 3.1120
1977 3.3710
1978 3.0350
1979 3.4880
1980 3.6460
1981 3.6450
1982 2.4440
1983 1.9640
1984 1.6740
1985 1.3140
1986 1.9020
1987 1.6790
1988 2.0880
1989 2.0570
1990 2.5930
1991 3.2190
1992 3.3220
1993 3.2700
1994 3.2390
1995 3.2450
1996 3.2980
1997 3.3630
1998 3.3690
1999 3.3910
2000 3.4400
2001 3.5200
2002 3.6150
2003 3.6830
2004 3.7300
2005 3.7620
2006 3.7880
2007 3.8100
2008 3.8400
2009 3.8750
2010 3.9050
2011 3.9200
2012 3.9110
2013 3.8980
2014 3.8810
2015 3.8610
2016 3.8400
2017 3.8230
2018 3.8010
2019 3.7840
2020 3.7700
2021 3.7560
2022 3.7420
2023 3.7290
2024 3.7130
2025 3.6940
2026 3.6730
2027 3.6520
2028 3.6230
2029 3.6010
2030 3.5760
2031 3.5470
2032 3.5150
2033 3.4820
2034 3.4460
2035 3.4140
2036 3.3780
2037 3.3420
2038 3.3060
2039 3.2660