Year	current US$
2000	5174855.67843343
2001	5816430.45909377
2002	6142923.73291542
2003	7945963.31630343
2004	9122924.4415626
2005	9664347.35606505
2006	10843295.3755705
2007	13483224.2963824
2008	15483153.1111251
2009	14939150.0682809
2010	14230245.18887
2011	14830530.3701516
2012	13078952.977024
2013	13483426.314264
2014	14439421.0075056
2015	12642829.5939859
2016	12710066.3797762
2017	14058517.1175309
2018	16606527.402951
2019	16639043.9166653
2020	16558074.9369711
2021	17857315.2599175