Accounts Receivable Quarterly Activity
| Quarter Ending | ||
| December 31, 2007 | Agencies | Universities |
| September 30, 2007 | Agencies | Universities |
| March 31, 2007 | Agencies | Universities |
| December 31, 2006 | Agencies | Universities |
| September 30, 2006 | Agencies | Universities |
| March 31, 2006 | Agencies | Universities |
| December 31, 2005 | Agencies | Universities |
| September 30, 2005 | Agencies | Universities |