Year	constant 2015 US$
1995	37856.330925389775
1996	53987.97535817388
1997	51664.3871975646
1998	46933.96648506957
1999	77587.78109519355
2000	51867.84548443886
2001	67504.92229102466
2002	69638.31673724782
2003	30005.0854621337
2004	46690.161858316795
2005	40197.30077255354
2006	39195.30422403714
2007	40575.58361564617
2008	37490.97901920568
2009	43947.42365483845
2010	60793.297537189144
2011	41028.285767278336
2012	43065.811804057295
2013	28950.18672049048
2014	35401.82641728914
2015	48363.667045385046
2016	48547.704937710754
2017	32028.2362764861
2018	46050.12477936087
2019	63766.48162384841
2020	51098.944687692616
2021	35319.08664708184
2022	37419.86409108409