condition mean min max 4 h after light 6837.767222333333 4125.436667 9029.505 8 h after light 10406.920555333334 7508.793333 15734.905 12 h after light 11980.911111000001 8319.673333 14668.09667 1.5 h after dark 12665.044443333334 10704.13333 13820.3 5.5 h after dark 9277.087777666666 7635.583333 11644.21 9.5 h after dark 4908.843333666667 4568.436667 5175.466667