Year	Percent of GDP (Units)
1997	90.523
1998	95.031
1999	83.295
2000	81.880
2001	89.563
2002	90.267
2003	81.310
2004	81.503
2005	79.442
2006	61.648
2007	35.594
2008	36.436
2009	37.956
2010	38.731
2011	40.136
2012	35.023
2013	32.768
2014	33.412
2015	38.209
2016	39.981
2017	39.536
2018	42.269
2019	40.757
2020	48.219
2021	38.497
2022	23.637
2023	24.916
2024	30.700
2025	30.259
2026	27.675
2027	27.867
2028	27.524
2029	27.151
