Year	% of GDP
1982	15.1806353405658
1983	19.6507681637951
1984	20.1893404929491
1985	17.5627061915962
1986	16.5325032077446
1987	15.2476253563429
1988	15.5537412776855
1989	17.4385062766719
1990	17.716465771702
1991	20.5545057320961
1992	19.8061034797167
1993	14.9003619001563
1994	14.9968887545487
1995	15.1439010770849
1996	17.3726077732963
1997	18.1403968585162
1998	17.8629680659026
1999	17.9981050225512
2000	17.0461840735165
2002	16.6151711212181
2003	16.0916425250644
2004	16.1892433673567
2005	15.0188516932191
2006	15.039180582411
2007	17.1423375623108