text: In December 1999, we entered into an operating lease facility established to Ñnance the acquisition of 
  operating equipment consisting primarily of revenue-producing vehicles. In July 2002, we retired this facility 
  using our excess cash. 
  
  We used proceeds from our cash on hand, liquidation of marketable securities, cash Öow from operations, 
  and tax-exempt bonds to fund capital expenditures and acquisitions and to repay debt. We intend to Ñnance 
  future stock repurchases and dividend payments through cash on hand, cash Öow from operations, our 
  revolving credit facility and other Ñnancings. 
  
  **Credit Rating**
  
  Our company has received investment grade credit ratings. As of December 31, 2004, our senior debt was 
  rated BBB°/positive by Standard & Poor's, BBB°/positive by Fitch and Baa2 by Moody's. 
  
  **Operating Lease Facility**
  
  In December 1999, we entered into a $100.0 million facility established to Ñnance the acquisition of 
  operating equipment consisting primarily of revenue-producing vehicles. In July 2002, we exercised our right 
  to purchase the equipment underlying this facility by paying $72.6 million using our excess cash, which was 
  the balance outstanding under the facility at that time. 