Year	including construction (constant 2015 US$)
1991	7844.751578781313
1992	5810.365852865864
1993	5716.902706818183
1994	4576.371702774511
1995	4180.052908558588
1996	3519.3945756135918
1997	3521.608580107127
1998	3896.4985851653605
1999	4036.369957858301
2000	4205.926955163507
2001	4473.403080373706
2002	4464.052528646874
2003	4554.255451322954
2004	4860.533353220178
2005	5399.148947285303
2006	5733.634619817311
2007	6355.794111064526
2008	6206.770458194093
2009	5778.8826990452435
2010	6071.623756075579
2011	6149.085290548232
2012	6328.6412174260295
2013	6239.450897956736
2014	6280.38275641795
2015	6629.932845623054
2016	7277.297582945455
2017	8424.402348658165
2018	9466.655351248635
2019	10048.432828718738
2020	11397.291079492474
2021	12480.849971783697
2022	12948.138767497727
