Year	constant 2015 US$
1995	5990.400908114688
2000	5535.327236768672
2001	5593.443690093319
2002	5678.366129228419
2003	5538.595878480311
2004	5800.51059238712
2005	5864.336832467278
2006	5824.47533767096
2007	5795.242948773993
2008	5887.256644557726
2009	5992.987340226084
2010	5945.313598143856
2011	5926.141333836843
2012	6101.002902865672
2013	6204.6812603380295
2014	6215.012139011525
2015	6246.6390563002315
2016	6270.189675633404
2017	6359.731515625019
2018	6585.11611761886
2019	6890.774638067962
2020	7056.402069130085
2021	7403.083848498958
2022	7418.977242723552