condition mean min max 4 h after light 128.6 128.6 128.6 8 h after light 127.9 116.4 139.4 12 h after light 230.55 228.9 232.2 4 h after dark 146.75 89.7 203.8 8 h after dark 75.5 60.0 91.0 12 h after dark 58.050000000000004 18.2 97.9