| In assessment area | |||||||
| %dollars | |||||||
| CAT | Top 25 | Large | Small | ||||
| Top 25 | 1997 | 89.46 | 80.63 | 77.82 | |||
| Top 25 | 1998 | 88.59 | 81.10 | 78.14 | |||
| Top 25 | 1999 | 87.68 | 75.74 | 77.28 | |||
| Top 25 | 2000 | 85.33 | 66.48 | 80.02 | |||
| Top 25 | 2001 | 83.38 | 74.72 | 81.59 | |||
| Top 25 | 2002 | 82.09 | 72.03 | 80.13 | |||
| Top 25 | 2003 | 78.06 | 77.69 | 78.44 | |||
| Top 25 | 2004 | 69.50 | 64.98 | 52.55 | |||
| Top 25 | 2005 | 65.31 | 65.67 | 55.52 | |||
| Top 25 | 2006 | 61.06 | 60.62 | 56.35 | |||
| Top 25 | 2007 | 59.87 | 55.59 | 55.79 | |||
| Large | 1996 | 0.00 | |||||
| Large | 1997 | 80.63 | |||||
| Large | 1998 | 81.10 | |||||
| Large | 1999 | 75.74 | |||||
| Large | 2000 | 66.48 | |||||
| Large | 2001 | 74.72 | |||||
| Large | 2002 | 72.03 | |||||
| Large | 2003 | 77.69 | |||||
| Large | 2004 | 64.98 | |||||
| Large | 2005 | 65.67 | |||||
| Large | 2006 | 60.62 | |||||
| Large | 2007 | 55.59 | |||||
| Small | 1996 | 0.00 | |||||
| Small | 1997 | 77.82 | |||||
| Small | 1998 | 78.14 | |||||
| Small | 1999 | 77.28 | |||||
| Small | 2000 | 80.02 | |||||
| Small | 2001 | 81.59 | |||||
| Small | 2002 | 80.13 | |||||
| Small | 2003 | 78.44 | |||||
| Small | 2004 | 52.55 | |||||
| Small | 2005 | 55.52 | |||||
| Small | 2006 | 56.35 | |||||
| Small | 2007 | 55.79 | |||||