condition	mean	min	max
0 h after light	18.182850000000002	16.9363	19.4294
4 h after light	14.3971	12.8721	15.9221
8 h after light	10.324895	8.56189	12.0879
4 h after dark	15.5536	14.6101	16.4971
8 h after dark	15.816699999999999	14.6756	16.9578
12 h after dark	16.84095	14.5431	19.1388