condition	mean	min	max
4 h after light	18.037599999999998	16.1345	19.9407
8 h after light	16.920949999999998	16.41	17.4319
12 h after light	16.55895	15.6543	17.4636
4 h after dark	18.851633333333332	16.5442	20.897
8 h after dark	21.376466666666666	21.0005	21.9818
12 h after dark	18.9544	17.7212	19.778