Year current US$ 1972 19999.9995529652 1973 29999.999329447703 1974 50000.0007450581 1975 19999.9995529652 1977 19999.9995529652 1978 29999.999329447703 1982 70000.0002980232 1995 9999.99977648258 1996 0 1997 29999.999329447703 2001 70000.0002980232 2002 140000.000596046 2003 970000.028610229 2004 140000.000596046 2005 200000.00298023198 2010 59999.9986588955 2011 4090000.1525878897 2012 150000.005960464 2013 639999.985694885 2014 379999.99523162795 2015 509999.99046325695 2016 2049999.9523162802 2017 6610000.1335144 2018 4250000 2019 7670000.07629395 2020 3069999.9332428 2021 2390000.10490417 2022 2819999.9332428