Year	% of GDP
1995	9.633309366153762
1996	10.681873973782672
1997	13.332647197305356
1998	11.252148900345071
2002	5.833590502117957
2003	4.220377195907563
2004	2.97078489160259
2011	4.03377917061349
2012	4.206883046433441
2013	5.921678630394511
2014	3.2497525630596895
2015	3.3662040274501903
2016	2.9384120248913566
2017	2.8480668471018955
2018	3.20734102129631
2019	0.7847339136589769
2020	6.246391839177254
2021	8.691741994419097