Year	constant 2015 US$
1991	26928.873958010437
1992	26802.1698568024
1993	30771.13224401982
1994	32623.216945646844
1995	33325.89833961837
1996	32371.3377847969
1997	32748.84171590289
1998	34758.06657666767
1999	35560.40756497108
2000	35984.32288760602
2001	36624.181422466936
2002	40970.66714523024
2003	42059.68343998357
2004	49905.03454621445
2005	55212.54867180155
2006	56804.63245515496
2007	66739.11777558233
2008	73068.30203903287
2009	73065.814276377
2010	85341.86806126012
2011	94461.4981486512
2012	103190.0943660804
2013	98533.43575849716
2014	102935.85148227867
2015	108271.03519864178
2016	98004.1489211222
2017	103430.64535101889
2018	98507.44700916321
2019	101472.87442218485
2020	105039.71163943908
2021	96979.84832167819
2022	105740.86495432258