condition	mean	min	max
4 h after light	6.388529999999999	6.09807	6.67899
8 h after light	3.3890599999999997	3.2509	3.52722
12 h after light	9.62978	9.23306	10.0265
4 h after dark	16.774250000000002	16.0872	17.4613
8 h after dark	22.72535	20.6195	24.8312
12 h after dark	14.860600000000002	14.7588	14.9624