Year current US$ 1968 9999.99977648258 1969 9999.99977648258 1970 90000.0035762787 1971 200000.00298023198 1972 250000 1973 540000.021457672 1974 200000.00298023198 1975 180000.00715255702 1978 159999.99642372102 1979 90000.0035762787 1980 59999.9986588955 1981 150000.005960464 1982 50000.0007450581 1983 70000.0002980232 1984 39999.9991059303 1985 100000.00149011599 1986 109999.999403954 1988 129999.995231628 1989 2960000.03814697 1990 2470000.02861023 1991 1779999.97138977 1992 2180000.0667572 1993 4300000.19073486 1994 6530000.20980835 1995 5619999.88555908 1996 3119999.8855590797 1997 4769999.98092651 1998 550000.011920929 1999 1110000.01430511 2000 1570000.05245209 2001 1600000.02384186 2002 2009999.9904632599 2003 3180000.0667572 2004 2819999.9332428 2005 3509999.99046326 2006 4500000 2007 5579999.92370605 2008 7320000.17166138 2009 11289999.961853001 2010 16370000.839233398 2011 26750000 2012 20719999.3133545 2013 24549999.237060502 2014 20000000 2015 19940000.5340576 2016 21950000.762939498 2017 24329999.9237061 2018 21780000.6866455 2019 21079999.9237061 2020 21920000.0762939 2021 19979999.5422363 2022 12960000.038146999