Tier 1 Capital Ratio Over Time
Tier 1 Capital Ratio Northern Trust Bank Of Texas National Association All Insured Commercial Banks in Texas
06-30-2006 10.75 17.115
03-31-2006 11.44 17.048
12-31-2005 11.43 16.861
09-30-2005 12.28 17.138
06-30-2005 12.59 17.245
03-31-2005 11.81 17.369
12-31-2004 11.45 17.12
09-30-2004 11.87 17.344
06-30-2004 10.77 17.209
03-31-2004 12.56 17.325
12-31-2003 12.16 17.049
09-30-2003 12.8 17.144
06-30-2003 14.25 16.9
03-31-2003 14.22 16.919
12-31-2002 13.46 16.71