YEAR PROD
1960 0.3490
1961 0.3610
1962 0.3630
1963 0.4230
1964 0.4580
1965 0.4800
1966 0.5070
1967 0.4490
1968 0.5490
1969 0.5570
1970 0.5710
1971 0.6210
1972 0.5350
1973 0.7370
1974 0.7190
1975 0.8250
1976 0.8810
1977 0.8580
1978 0.9340
1979 1.2680
1980 0.9650
1981 0.3270
1982 0.3690
1983 0.4030
1984 0.4490
1985 0.5160
1986 0.6920
1987 0.8720
1988 1.0130
1989 1.0370
1990 0.7870
1991 0.1020
1992 0.1920
1993 0.1700
1994 0.1900
1995 0.2100
1996 0.2280
1997 0.4380
1998 0.7900
1999 0.9900
2000 1.1800
2001 1.3500
2002 1.5000
2003 1.6300
2004 1.7400
2005 1.8170
2006 1.8800
2007 1.9210
2008 1.9440
2009 1.9570
2010 1.9630
2011 1.9590
2012 1.9480
2013 1.9290
2014 1.9130
2015 1.9010
2016 1.8940
2017 1.8930
2018 1.8960
2019 1.9050
2020 1.9180
2021 1.9290
2022 1.9350
2023 1.9370
2024 1.9360
2025 1.9330
2026 1.9280
2027 1.9180
2028 1.9090
2029 1.8980
2030 1.8860
2031 1.8740
2032 1.8600
2033 1.8460
2034 1.8310
2035 1.8160
2036 1.7990
2037 1.7830
2038 1.7640
2039 1.7450