condition mean min max 0 h after light 12.74895 11.116 14.3819 2 h after light 13.06515 12.9943 13.136 4 h after light 14.13925 13.0089 15.2696 8 h after light 16.38775 14.9108 17.8647 12 h after light 22.1462 21.5296 22.7628 2 h after dark 20.484099999999998 17.5138 23.4544 4 h after dark 17.91245 17.2944 18.5305 8 h after dark 15.16425 15.1178 15.2107 12 h after dark 12.819600000000001 11.9829 13.6563