NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 9. NOTES PAYABLE The following is a summary of our indebtedness: december 31, in millions  2004 2003 Unsecured line of credit and short-term borrowings $ 56.0 $ 47.0 Senior unsecured notes $200.0 million 7.14% Notes, due 2004 - 199.9 $50.0 million 7.11% Notes, due 2006 49.9 49.9 $75.0 million 7.16% Notes, due 2006 74.8 74.7 $50.0 million 7.28% Notes, due 2006 50.0 49.9 $150.0 million 5.98% Notes, due 2007 149.6 149.5 $100.0 million 4.74% Notes, due 2009 99.9 - $250.0 million 4.39% Notes, due 2010 249.9 - $100.0 million 6.77% Notes, due 2010 99.9 99.9 $150.0 million 7.69% Notes, due 2011 149.5 149.5 $200.0 million 5.93% Notes, due 2012 199.3 199.2 $200.0 million 5.45% Notes, due 2013 198.9 198.9 1,321.7 1,171.4 Medium-term notes $5.0 million 6.88% Notes, due 2004 - 5.0 $25.0 million 7.17% Notes, due 2004 - 25.0 $15.0 million 7.63% Notes, due 2009 15.0 15.0 $14.5 million 6.79% Notes, due 2010 14.5 14.5 29.5 59.5 Total unsecured notes 1,407.2 1,277.9 Secured notes 7.10% - 8.50% Conventional Mortgage Notes, due 2006– 2009 71.7 133.2 1.81% - 7.29% Tax-exempt Mortgage Notes, due 2025 - 2032 97.5 98.6 169.2 231.8 Total notes payable $ 1,576.4 $ 1,509.7 Floating rate debt included in unsecured line of credit (2.44% - 2.94%) $ 56.0 $ 47.0 Floating rate tax-exempt debt included in secured notes (1.81% - 4.72%) 90.8 77.6 Net book value of real estate assets subject to secured notes 273.0 347.3 At December 31, 2004, we had a $500 million unsecured line of credit. Subsequent to year end, we entered into a new  credit agreement which increased our credit facility to $600 million, with the ability to further increase it up to $750  million. This $600 million unsecured line of credit matures in January 2008. The scheduled interest rate is based  on spreads over LIBOR or Prime. The scheduled interest rate spreads are subject to change as our credit ratings  change. Advances under the line of credit may be priced at the scheduled rates, or we may enter into bid rate loans  with participating banks at rates below the scheduled rates. These bid rate loans have terms of six months or less and  may not exceed the lesser of $300 million or the remaining amount available under the line of credit. The line of credit  provides us with additional liquidity to pursue development and acquisition opportunities, as well as, lower our overall  cost of funds. The line of credit is subject to customary financial covenants and limitations, all of which we were in  compliance with at December 31, 2004. 82 camden transforming