condition mean min max 4 h after light 166.7360875 140.402902 193.069273 8 h after light 142.45894349999998 137.439732 147.478155 12 h after light 178.73839550000002 139.770518 217.706273 4 h after dark 342.229248 206.99567 477.462826 8 h after dark 298.371535 239.664859 357.078211 12 h after dark 310.503309 310.503309 310.503309