condition	mean	min	max
3 h after light	8.232823333333334	7.73686	8.60425
6 h after light	6.48226	4.30894	8.26835
9 h after light	5.72108	4.77116	6.62526
12 h after light	8.423765	7.65134	9.17076
3 h after dark	12.273033333333334	11.2139	13.9746
6 h after dark	12.1565	10.4482	13.6529
9 h after dark	9.90353	9.61733	10.4508
12 h after dark	6.09807	5.79135	6.40479