[["", "2010", "2009"], ["commercial mortgage pass-through certificates series 2007-1", "$ 1750000", "$ 1750000"], ["revolving credit facility", "300000", "550000"], ["term loan", "325000", "325000"], ["xcel credit facility", "2014", "73367"], ["colombian short-term credit facility", "72889", "2014"], ["4.50% ( 4.50 % ) senior notes", "999216", "2014"], ["5.05% ( 5.05 % ) senior notes", "699186", "2014"], ["4.625% ( 4.625 % ) senior notes", "599346", "599210"], ["7.00% ( 7