condition mean min max 4 h after light 180.5 180.5 180.5 8 h after light 144.45 79.7 209.2 12 h after light 196.60000000000002 188.8 204.4 4 h after dark 156.9 117.8 196.0 8 h after dark 138.10000000000002 129.9 146.3 12 h after dark 113.8 111.0 116.6