Year	constant 2011 international $
2001	1579.38533315808
2002	1549.05443713045
2003	1587.3018176237
2004	1636.65187337546
2005	1681.97553889982
2006	1725.02270899451
2007	1766.92919457167
2008	1853.95822325464
2009	1926.45070521295
2010	2001.91599735892
2011	2063.88238367885
2012	2172.25726231128
2013	2267.1734059785
2014	2426.12485255193
2015	2495.72800781399
2016	2486.0964510231
2017	2639.02672216729
2018	2748.20038180184