Year Percent of GDP 1990-01-01 138.9048820124870 1991-01-01 123.7744921678270 1992-01-01 119.9846953572680 1993-01-01 117.6120696989560 1994-01-01 108.8177752000900 1995-01-01 104.3858578159240 1996-01-01 102.7799383648340 1997-01-01 97.2688736914740 1998-01-01 98.1681244717518 1999-01-01 91.4255936980642