condition	mean	min	max
4 h after light	8.004114999999999	7.26211	8.74612
8 h after light	15.5602	14.6969	16.4235
12 h after light	14.4393	14.3495	14.5291
4 h after dark	18.190399999999997	17.772	18.6088
8 h after dark	10.73095	10.4639	10.998
12 h after dark	9.83319	9.49828	10.1681