Year Percent 1984-01-01 1.0264200000000000 1985-01-01 0.7997380000000001 1986-01-01 0.6847979999999999 1987-01-01 0.8583360000000001 1988-01-01 1.2159900000000000 1989-01-01 1.2726500000000000 1990-01-01 1.7627000000000000 1991-01-01 2.8290800000000000 1992-01-01 4.1560200000000000 1993-01-01 5.2362400000000004 1994-01-01 5.0060900000000000 1995-01-01 4.7498200000000000 1996-01-01 4.3641400000000000