Year	including construction (constant 2010 US$)
1980	24448505478.6105
1981	25785274663.4122
1982	28195310131.4543
1983	30349194099.7272
1984	32209999800.6332
1985	33850802235.145
1986	35608646751.2277
1987	37522184371.4605
1988	41242232071.5146
1989	41640306393.6703
1990	36435268086.0007
1991	29658308196.4189
1992	27760176443.1489
1993	26039045548.7531
1994	27601388289.8007
1995	26110913286.9543
1996	6877389992.09482
1997	6682088840.90223
1998	7506521250.42441
1999	7095023406.27085
2000	7898891804.24752
2001	8315371333.34909
2002	8722932916.05256
2003	9346285138.26515
2004	9726672749.4563
2005	10228292664.7539
2006	11147073309.6763
2007	12582073654.0856
2008	13294893212.4798
2009	12836301967.2024
2010	12049884932.9904
2011	12542780621.673
2012	12506946184.5645
2013	12571036229.1514
2014	12874607651.4399
2015	13322678057.8715
2016	13849587948.7189
2017	14416454406.2327
2018	14597218315.8914