Year	current US$
1995	486450124.196581
1996	557614596.99196
1997	492323809.928894
1998	495453434.25793
1999	657130051.118597
2000	554559608.300993
2001	611188719.329728
2002	635318060.390276
2003	672291476.854856
2004	827662792.757915
2005	933656853.336043
2006	1085691997.21255
2007	1177479621.67601
2008	1299412196.87697
2009	1196444724.41024
2010	1199157750.27888
2011	1227344978.04621
2012	1254600489.98476
2013	1336538605.70778
2014	1351304689.29191
2015	1274255368.12748
2016	1289324860.09108
2017	1268185480.31644
2018	1295567216.75409
2019	1311782569.26068
2020	821832443.665485
2021	831502696.662449
2022	863836976.43937
2023	847193218.595668