condition	mean	min	max
0 h after light	17.30095	15.7038	18.8981
4 h after light	16.472450000000002	15.0852	17.8597
8 h after light	5.0251850000000005	4.9973	5.05307
4 h after dark	4.02928	3.33573	4.72283
8 h after dark	8.44097	8.40555	8.47639
12 h after dark	17.3002	14.4372	20.1632