Year	constant 2015 US$
1991	65756.76907395855
1992	64514.87673458915
1993	65177.86644126496
1994	65461.894489860504
1995	66828.59839266494
1996	67674.10528792665
1997	68738.05267429884
1998	69903.45929311738
1999	70769.21902569525
2000	71089.23456412903
2001	71028.89290777297
2002	69643.42575674785
2003	69698.0474444149
2004	71646.79389769214
2005	76895.78771775262
2006	78142.63273037736
2007	77624.34589025822
2008	77028.96985605331
2009	74665.40746102965
2010	75653.37625791028
2011	76258.160026367
2012	75679.32711754598
2013	75481.02175311379
2014	77113.8914333615
2015	77934.80269410109
2016	78381.07614934722
2017	78863.81354589191
2018	78316.77917433248
2019	78337.38389803813
2020	74579.76575791118
2021	77099.10619965571
2022	79077.16771259221
