| Characteristic | Production in million metric tons |
|---|---|
| 2023 | 7.1 |
| 2022 | 7 |
| 2021 | 6.9 |
| 2020 | 7.3 |
| 2019 | 7 |
| 2018 | 6.9 |
| 2017 | 6.9 |
| 2016 | 6.9 |
| 2015 | 6.8 |
| 2014 | 6.7 |
| 2013 | 6.8 |
| 2012 | 6.6 |
| 2011 | 6.6 |
| 2010 | 6.6 |
| 2009 | 6.6 |
| 2008 | 6.6 |
| 2007 | 6.7 |
| 2006 | 6.8 |
| 2005 | 6.7 |
| 2004 | 6.5 |
| 2003 | 6.4 |
| 2002 | 6.5 |
| 2001 | 6.4 |
| 2000 | 6.3 |
| 1999 | 6.2 |
| 1998 | 6 |
| 1997 | 5.8 |
| 1996 | 5.7 |
| 1995 | 5.6 |
| 1994 | 5.5 |
| 1993 | 5.5 |
| 1992 | 5.2 |
| 1991 | 5.1 |
| 1990 | 5.3 |
| 1989 | 5.1 |
| 1988 | 5 |
| 1987 | 4.8 |
| 1986 | 4.6 |
| 1985 | 4.5 |
| 1984 | 4.5 |
| 1983 | 4.3 |
| 1982 | 4 |
| 1981 | 4.1 |
| 1980 | 4 |
| 1979 | 4.1 |
| 1978 | 3.8 |
| 1977 | 3.9 |
| 1976 | 3.8 |
| 1975 | 3.6 |
| 1974 | 3.7 |
| 1973 | 3.7 |
| 1972 | 3.6 |
| 1971 | 3.5 |
| 1970 | 3.4 |
| 1969 | 3.3 |
| 1968 | 3.1 |
| 1967 | 2.9 |
| 1966 | 2.8 |
| 1965 | 2.6 |
| 1964 | 2.5 |
| 1963 | 2.3 |
| 1962 | 2.2 |
| 1961 | 2.1 |
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Source
Source
Release date
December 2024
More information
Region
United States
Survey time period
1961 to 2023
Supplementary notes
Figures have been rounded.
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