Year current US$ 1981 200000.00298023198 1982 150000.005960464 2001 2619999.8855590797 2002 569999.992847443 2003 620000.004768372 2004 1399999.97615814 2005 1120000.00476837 2006 230000.004172325 2017 239999.994635582 2018 189999.99761581398 2019 150000.005960464 2020 39999.9991059303