Year	constant 2015 US$
2008	2540.0561629053527
2009	2676.7074796278966
2010	2816.6184881748677
2011	2983.347854734735
2012	3021.384864703336
2013	3163.4753748074545
2014	3279.0557408328777
2015	3520.7820746247803
2016	3739.198762205356
2017	3890.2128257788822
2018	4009.1236385058855
2019	4219.097599071771
2020	3990.9862599761
2021	4429.977666777506
2022	4666.417750094469
2023	4854.333510534797