Year	current US$
1988	2335.5160699895478
1989	2250.4474428599174
1990	2375.1705552777194
1991	2319.9343058565214
1992	2141.37164344991
1993	2127.5692893830987
1994	1920.7536996300707
1995	2124.1238087078264
1996	2182.0110698716667
1997	2247.708359660474
1998	2171.39968447224
1999	1883.030664808527
2000	2051.9922820824777
2001	2088.2184207929154
2002	2349.8733166947495
2003	2890.506294987788
2004	3737.5510486888193
2005	4677.7027735773445
2006	5650.595106075951
2007	7262.578752814518
2008	8966.072887388998
2009	7082.535822711131
2010	8283.738116515573
2011	10028.33393012717
2012	10423.44583044717
2013	10971.180941940023
2014	10313.115273682797
2015	8014.504150794851
2016	7662.532909257231
2017	8554.011096784916
2018	8883.501511200804
2019	9022.695898318552
2020	8437.728505808653
2021	9985.477092659268
2022	11413.915011189849
2023	11952.688064564796