condition mean min max 4 h after light 144.3 144.3 144.3 8 h after light 154.45 132.9 176.0 12 h after light 178.45 139.7 217.2 4 h after dark 179.2 152.2 206.2 8 h after dark 112.44999999999999 97.3 127.6 12 h after dark 134.60000000000002 132.3 136.9