Year Percent of GDP 1991-01-01 88.7936648764972 1992-01-01 103.9915799041020 1993-01-01 117.6309794284150 1994-01-01 117.0125899339370 1995-01-01 128.9192190598120 1996-01-01 144.0976814899280 1997-01-01 134.2470828471410 1998-01-01 151.2772113943030 1999-01-01 162.5614404918750