Year	constant 2010 US$
1991	8555.64139990915
1992	8653.66076887298
1993	8685.19788352566
1994	8534.42125441914
1995	8768.39214169796
1996	8839.52221285404
1997	9014.80467060571
1998	8929.13435398452
1999	8906.44407494487
2000	9057.40202900998
2001	8975.55498777063
2002	9011.08908487413
2003	9089.23472500642
2004	9271.6740570471
2005	9593.71728881134
2006	9777.7258152487
2007	10162.7657877799
2008	10334.8459721375
2009	10290.472507585
2010	10471.1579853542
2011	10759.7750560733
2012	10993.5835504053
2013	11233.0549119786
2014	11478.1259112153
2015	11460.7613754345
2016	11638.2161653577
2017	11850.5650853479
2018	11382.169719953
