Efficiency Ratio Over Time
Efficiency Ratio Northern Trust Bank, National Association All Insured Commercial Banks in Arizona
09-30-2006 54.336 86.432
06-30-2006 54.405 79.483
03-31-2006 56.268 68.127
12-31-2005 54.51 72.226
09-30-2005 54.814 72.565
06-30-2005 55.266 72.612
03-31-2005 55.942 74.043
12-31-2004 58.514 74.304
09-30-2004 58.552 75.867
06-30-2004 59.273 78.373
03-31-2004 59.684 77.094
12-31-2003 62.082 94.762
09-30-2003 63.572 90.81
06-30-2003 65.893 95.041
03-31-2003 64.688 101.157
12-31-2002 58.793 156.426