condition	mean	min	max
4 h after light	12.51225	11.448	13.5765
8 h after light	7.3972750000000005	7.02894	7.76561
12 h after light	4.8758099999999995	4.6262	5.12542
4 h after dark	8.50125	8.13754	9.11402
8 h after dark	16.510566666666666	15.9711	16.8985
12 h after dark	13.725200000000001	13.3828	13.9356