Year	current US$
2000	234.60541801
2001	223.37128829
2002	232.7114527
2003	280.31240119
2004	310.37750553
2005	391.85595865
2006	445.57575895
2007	496.65971391
2008	489.58977301
2009	455.5547839
2010	567.30812325
2011	639.41891251
2012	672.83065781
2013	724.45797815
2014	822.79467546
2015	827.59246039
2016	876.57091985
2017	956.42355097
2018	1066.09177351
2019	1097.54861844
2020	1063.73231327
2021	1271.55169107
2022	1204.42993245