Year current US$ 1970 70000.0002980232 1971 239999.994635582 1972 109999.999403954 1973 289999.99165535 1974 460000.00834465 1975 319999.99284744303 1976 389999.98569488496 1977 589999.973773956 1978 860000.014305115 1979 860000.014305115 1980 1110000.01430511 1981 740000.009536743 1982 709999.978542328 1983 1149999.97615814 1984 1110000.01430511 1985 2700000.04768372 1986 2650000.09536743 1987 2400000.09536743 1988 2009999.9904632599 1989 2660000.08583069 1990 3250000 1991 2779999.97138977 1992 2720000.02861023 1993 2910000.08583069 1994 4969999.79019165 1995 7769999.98092651 1996 7170000.07629395 1997 2950000.04768372 1998 1860000.01430511 1999 5309999.94277954 2000 2910000.08583069 2001 2539999.96185303 2002 2519999.98092651 2003 3950000.04768372 2004 3359999.89509583 2005 5099999.90463257 2006 7989999.771118159 2007 9590000.15258789 2008 9189999.5803833 2009 9869999.88555908 2010 10010000.2288818 2011 9970000.26702881 2012 9238327.9800415 2013 8768498.42071533 2014 10037080.7647705 2015 11857227.3254395 2016 11108958.2443237 2017 12042779.9224854 2018 11377602.577209499 2019 11081999.7787476 2020 9831000.32806396 2021 9340999.60327148 2022 9244000.43487549