Tier 1 Capital Over Time
Tier 1 Capital Oak Brook Bank All Insured Commercial Banks in Illinois
09-30-2006 138,234,000 16,714,667
06-30-2006 169,558,000 16,385,912
03-31-2006 165,050,000 16,117,093
12-31-2005 152,688,000 15,944,122
09-30-2005 150,262,000 15,641,072
06-30-2005 147,517,000 15,351,550
03-31-2005 144,750,000 15,444,123
12-31-2004 142,000,000 15,043,536
09-30-2004 139,046,000 14,833,749
06-30-2004 136,300,000 14,521,735
03-31-2004 133,311,000 14,210,619
12-31-2003 130,264,000 13,763,553
09-30-2003 123,390,000 13,629,712
06-30-2003 120,391,000 13,409,744
03-31-2003 117,527,000 13,199,238
12-31-2002 114,605,000 12,887,259