condition	mean	min	max
0 h after light	15.09	14.1469	16.0331
4 h after light	10.064820000000001	9.79184	10.3378
8 h after light	7.13763	6.85672	7.41854
4 h after dark	14.59505	11.7187	17.4714
8 h after dark	11.6609	11.3293	11.9925
12 h after dark	14.72715	13.4712	15.9831