Bar chart with 11 items.Item 1, 1990 0 Item 2, 1991 0.07 Item 3, 1992 5 Item 4, 1993 19 Item 5, 1994 19.2 Item 6, 1995 21.7 Item 7, 1996 22.7 Item 8, 1997 26.8 Item 9, 1998 27.1 Item 10, 1999 29.4 Item 11, 2000 31.4
back