Bar chart with 5 groups with 3 items per group.
Group 1, 1998
Item 1, Class I 0
Item 2, Class II 1274
Item 3, Class III 324
Group 2, 1999
Item 1, Class I 1
Item 2, Class II 944
Item 3, Class III 350
Group 3, 2000
Item 1, Class I 2
Item 2, Class II 1026
Item 3, Class III 258
Group 4, 2001
Item 1, Class I 8
Item 2, Class II 1513
Item 3, Class III 485
Group 5, 2002
Item 1, Class I 11
Item 2, Class II 1546
Item 3, Class III 495