condition mean min max 0 h after light 1080.43 1079.98 1080.88 4 h after light 492.8495 401.437 584.262 8 h after light 425.36850000000004 419.704 431.033 4 h after dark 747.833 713.684 781.982 8 h after dark 718.4075 708.811 728.004 12 h after dark 840.3375 836.473 844.202