condition	mean	min	max
4 h after light	8.2	8.2	8.2
8 h after light	10.65	9.0	12.3
12 h after light	37.5	13.9	61.1
4 h after dark	37.55	23.8	51.3
8 h after dark	42.05	30.8	53.3
12 h after dark	17.1	16.1	18.1