Year	Percent of GDP
1990-01-01	37.7446339898885
1991-01-01	39.3021127646483
1992-01-01	41.0148021701435
1993-01-01	40.6309082474630
1994-01-01	43.5483620376491
1995-01-01	45.6006768931740
1996-01-01	46.2987190321195
1997-01-01	46.4893188609908
1998-01-01	47.4428692985714
1999-01-01	45.6356965117688