condition	mean	min	max
4 h after light	19.88875	17.5345	22.243
8 h after light	48.314	45.9	50.728
12 h after light	100.66495	99.5399	101.79
4 h after dark	98.30303333333333	90.1756	105.95
8 h after dark	55.22153333333333	50.5667	60.503
12 h after dark	24.3852	19.8549	28.7763