Year	current US$
2000	91.51657617880281
2001	91.92993078944141
2002	96.10725604011839
2003	108.08407710336807
2004	118.72005067391743
2005	126.91602807891883
2006	135.83287965828896
2007	148.56450327162193
2008	161.60008329796995
2009	158.58296482345554
2010	167.05965012093174
2011	181.7324421546499
2012	185.44691630520143
2013	189.9327865227147
2014	191.23853881824385
2015	180.68783237157183
2016	182.59920238364606
2017	188.38153492519405
2018	196.77122829913512
2019	198.73179923228443
2020	193.4450602524935
2021	215.9904697918013