Vehicles Construction In progress Total Cost As of Decerrter 31, 2012 510.148.637 $67834,807 $805,712 S 81556 S 92.174 S — $79.052.886 AdItions 105.792 176,290 — 52133 3,930 — 337,694 Retirements — — — (8.996) — — (8,9%) As of December 31. 2013 10,254 429 66011,076 895,712