condition mean min max 4 h after light 207.4 207.4 207.4 8 h after light 260.6 229.3 291.9 12 h after light 233.5 197.2 269.8 4 h after dark 165.2 146.9 183.5 8 h after dark 105.35 97.6 113.1 12 h after dark 199.85 193.5 206.2