condition mean min max 4 h after light 208.4 208.4 208.4 8 h after light 204.3 187.9 220.7 12 h after light 202.35 168.0 236.7 4 h after dark 147.2 51.0 243.4 8 h after dark 110.9 93.9 127.9 12 h after dark 103.4 68.8 138.0