Year	constant 2015 US$
2002	1084.214545987325
2003	1133.9630241323016
2004	1138.248564002663
2005	1153.7182429729303
2006	1184.3560626840344
2007	1210.3184877408232
2008	1262.0133260793777
2009	1341.7436442251499
2010	1343.152758847931
2011	1426.1774172409437
2012	1508.7762738012052
2013	1573.6071780985008
2014	1708.904640308532
2015	1696.9532969099644
2016	1733.670304929809
2017	1721.7105720923248
2018	1606.3228282827943
2019	1456.8647050787301
2020	1253.9568158223071
2021	1263.8154475637239
2022	1291.1896684084343
2023	1314.9858274689234