Year	current US$
1995	437331231.678807
1996	417902416.685168
1997	484866185.302418
1998	457231343.806629
1999	365139351.74262
2000	358642370.318064
2001	377459873.652958
2002	374028375.351685
2003	395186411.106359
2004	490282708.20406
2005	507424587.70651
2006	541683357.816598
2007	684474273.45456
2008	886785430.334308
2009	764270547.551366
2010	821050471.938183
2011	845479382.658344
2012	811369542.81617
2013	940276254.491223
2014	955275743.319458
2015	1127571919.21637
2016	889385128.006202
2017	1030271022.6867
2018	1333717960.91283
2019	1428871216.08096
2020	1451795941.12621
2021	1716334565.97991