Total Capital Ratio Over Time
Total Capital Ratio Northern Trust Bank Of California National Association All Insured Commercial Banks in California
09-30-2006 12.48 20.542
06-30-2006 12.38 18.37
03-31-2006 12.99 18.405
12-31-2005 12.46 19.028
09-30-2005 12.03 17.612
06-30-2005 11.46 16.878
03-31-2005 11.48 16.156
12-31-2004 11.05 15.653
09-30-2004 11.23 15.629
06-30-2004 11.62 15.77
03-31-2004 11.82 16.602
12-31-2003 11.6 16.471
09-30-2003 11.63 15.41
06-30-2003 11.94 15.245
03-31-2003 12.33 14.745
12-31-2002 11.69 14.805