Year	current US$
1995	9950801.91
1996	8804801.04
1997	8895329.1
1998	9325815.87
1999	9719768.52
2000	9870338.31
2001	10423584.15
2002	10907407.35
2003	11539014.3475656
2004	12234231.2973533
2005	13602558.2784914
2006	14435544.6379008
2007	15949254.1100856
2008	16429584.3496201
2009	17297621.1901349
2010	18571731.74903
2011	20369728.0703535
2012	21224334.4647043
2013	23320144.3034031
2014	24787329.2623888
2015	27622450.7733479
2016	30023811.4169427
2017	31969878.310011
2018	33825213.9956678
2019	36554537.25
2020	37447895.5896769
2021	37412229.0225674