Leverage Ratio Over Time
Leverage Ratio Northern Trust Bank, National Association All Insured Commercial Banks in Arizona
09-30-2006 8.45 15.233
06-30-2006 8.52 15.35
03-31-2006 8.63 11.25
12-31-2005 8.83 11.681
09-30-2005 9.32 11.924
06-30-2005 9.43 11.244
03-31-2005 9.56 12.818
12-31-2004 9.2 11.717
09-30-2004 9.36 13.654
06-30-2004 8.96 13.607
03-31-2004 8.79 14.832
12-31-2003 8.47 13.681
09-30-2003 8.33 13.437
06-30-2003 8.05 13.319
03-31-2003 8.11 16.37
12-31-2002 7.88 14.657