Efficiency Ratio Over Time
Efficiency Ratio Northern Trust Bank Of California National Association All Insured Commercial Banks in California
09-30-2006 69.499 76.157
06-30-2006 70.491 70.367
03-31-2006 70.339 69.95
12-31-2005 67.959 74.917
09-30-2005 67.51 71.155
06-30-2005 67.97 70.343
03-31-2005 68.399 68.656
12-31-2004 89.873 71.614
09-30-2004 96.581 71.664
06-30-2004 73.701 72.622
03-31-2004 71.298 74.921
12-31-2003 81.506 78.394
09-30-2003 83.01 69.685
06-30-2003 88.841 70.304
03-31-2003 78.362 69.597
12-31-2002 77.228 70.571