Year	constant 2015 US$
1997	44060.211127911214
1998	45362.62106376831
1999	51110.32680876035
2000	56726.086295768764
2001	65327.42353696496
2002	62915.30264429126
2003	67553.62951892601
2004	75427.08497741638
2005	71542.49925775091
2006	70039.49855142692
2007	68022.92026156311
2008	74147.2890494543
2009	71091.35450293112
2010	76809.99326191927
2011	79680.5384090107
2012	81389.45181760931
2013	92873.07257200232
2014	89353.61328518897
2015	96655.14996687592
2016	84330.51365473599
2017	108289.35426032946
2018	108399.78016528649
2019	106780.03276305605
2020	110065.47978252293
2021	111592.13994346633
2022	124508.81319978462