Year	constant 2015 US$
2007	26302590173.590584
2008	30922248707.07387
2009	32020127658.520363
2010	30815249461.277496
2011	31945389380.733746
2012	38561183131.48885
2013	38403173562.12883
2014	42809936435.85149
2015	57560658811.41081
2016	57062868456.74843
2017	56494439536.76455
2018	60034855356.0287
2019	62820018644.60529
2020	56473099704.0259
2021	48018409278.09595