Year current US$ 1970 500000 1971 -19999.9995529652 1972 449999.988079071 1973 -150000.005960464 1974 -129999.995231628 1975 -90000.0035762787 1976 59999.9986588955 1977 720000.028610229 1978 50000.0007450581 1979 10989999.7711182 1980 10720000.2670288 1981 230000.004172325 1983 509999.99046325695 1984 100000.00149011599 1985 79999.9982118607 1986 59999.9986588955 1987 140000.000596046 1988 59999.9986588955 1989 409999.99642372096 1990 20959999.570623063 1991 7779999.867081639 1992 43090001.599863164 1993 46619999.48322765 1994 112390000.41596588 1995 86540002.66082579 1996 94190001.23254962 1997 97980000.39346522 1998 95929998.40900292 1999 177260003.52948898 2000 144140003.96057963 2001 114760000.4673004 2002 126309999.79376805 2003 161230001.33037555 2004 145580002.18868244 2005 118200000.1557171 2006 115340000.0315159 2007 120129998.39521942 2008 129120001.17450945 2009 110519999.0868568 2010 120339999.37772751 2011 115599999.2787838 2012 101309999.16791911 2013 81090000.98705289 2014 87429999.93264678 2015 94979999.08030024 2016 45809999.86082314 2017 59050000.47013163 2018 61359998.717904046 2019 65900000.24810429 2020 59369998.97100025 2021 48070000.082254395 2022 597759983.5731087