condition mean min max 4 h after light 139.1 139.1 139.1 8 h after light 153.89999999999998 149.1 158.7 12 h after light 118.6 89.5 147.7 4 h after dark 110.5 105.9 115.1 8 h after dark 106.75 90.4 123.1 12 h after dark 84.30000000000001 83.2 85.4