Year	constant 2010 US$
1991	70637.2251796868
1992	72301.126015712
1993	72482.7681920325
1994	73699.0938701779
1995	67305.7160410099
1996	68017.2716631997
1997	69244.7865536113
1998	70521.3336526576
1999	71039.6454841808
2000	72352.1972821475
2001	73154.9354496616
2002	73226.8312877346
2003	72775.1274660903
2004	73184.5880677194
2005	73387.044600621
2006	74092.5654339996
2007	75001.8460826066
2008	74442.4986924607
2009	72538.8655401776
2010	73090.0264973134
2011	74229.4516147717
2012	74340.1929132321
2013	74336.221576757
2014	74561.0459834756
2015	74830.5063479972
2016	74810.6519958168
2017	78141.3039493954
2018	78770.2184308992