Year	Percent of GDP (Units)
1991	37.104
1992	30.492
1993	28.087
1994	22.610
1995	17.250
1996	14.584
1997	12.780
1998	12.115
1999	13.277
2000	13.146
2001	14.348
2002	15.045
2003	12.573
2004	10.314
2005	7.040
2006	5.022
2007	3.901
2008	4.916
2009	5.845
2010	8.607
2011	11.127
2012	11.939
2013	12.784
2014	15.020
2015	17.375
2016	21.101
2017	23.652
2018	25.798
2019	28.330
2020	32.380
2021	36.426
2022	37.796
2023	39.412
2024	40.509
2025	40.820
2026	41.295
2027	41.635
2028	41.704
2029	41.521