[["", "2011", "2010", "2009"], ["balance at beginning of year", "2728290", "2330532", "1824190"], ["granted", "185333", "400925", "506342"], ["cancelled", "-1167 ( 1167 )", "-3167 ( 3167 )", "2014"], ["balance at end of year", "2912456", "2728290", "2330532"], ["vested during the year", "66299", "153644", "420050"], ["compensation expense recorded", "$ 17365401", "$ 15327206", "$ 23301744"], ["weighted average fair value of restricted stock granted during the year", "$ 21768084", "$ 28269983", "$ 4979218"]]