condition mean min max 4 h after light 152.1 152.1 152.1 8 h after light 172.4 144.4 200.4 12 h after light 138.1 95.7 180.5 4 h after dark 127.0 94.9 159.1 8 h after dark 156.5 89.3 223.7 12 h after dark 124.30000000000001 94.3 154.3