Year	Percent of GDP (Units)
1997	32.266
1998	32.153
1999	32.510
2000	32.024
2001	37.362
2002	38.192
2003	36.000
2004	34.117
2005	32.491
2006	31.453
2007	31.449
2008	33.762
2009	33.562
2010	32.510
2011	31.856
2012	33.257
2013	31.673
2014	31.714
2015	32.222
2016	31.107
2017	31.763
2018	30.266
2019	31.406
2020	36.403
2021	35.272
2022	34.701
2023	37.897
2024	36.706
2025	36.445
2026	36.275
2027	36.104
2028	35.902
2029	36.138