condition mean min max 4 h after light 83.1 83.1 83.1 8 h after light 112.4 90.4 134.4 12 h after light 119.55 104.5 134.6 4 h after dark 160.4 129.0 191.8 8 h after dark 140.8 134.8 146.8 12 h after dark 122.30000000000001 88.3 156.3