condition mean min max 4 h after light 90.7 90.7 90.7 8 h after light 118.35 97.7 139.0 12 h after light 141.45 93.7 189.2 4 h after dark 185.15 176.5 193.8 8 h after dark 204.8 175.5 234.1 12 h after dark 117.30000000000001 112.4 122.2