Year	current US$
2000	945.44030762
2001	990.3112793
2002	1013.73596191
2003	1053.42016602
2004	1067.91625977
2005	1140.25158691
2006	1242.34899902
2007	1334.71789551
2008	1410.8215332
2009	1396.72705078
2010	1421.59057617
2011	1418.50854492
2012	1492.44909668
2013	1532.22961426
2014	1590.94995117
2015	1558.79882813
2016	1698.39001465
2017	2076.14160156
2018	1898.81311035
2019	1898.85632324
2020	1824.87536621
2021	1961.67785645