condition mean min max 4 h after light 49.1 49.1 49.1 8 h after light 52.45 51.6 53.3 12 h after light 50.05 49.9 50.2 4 h after dark 83.8 71.8 95.8 8 h after dark 85.0 54.6 115.4 12 h after dark 52.65 27.0 78.3