condition	mean	min	max
4 h after light	7.667854999999999	6.4026	8.93311
8 h after light	7.4259450000000005	6.83369	8.0182
12 h after light	12.099499999999999	11.669	12.53
4 h after dark	16.6198	15.8322	17.7706
8 h after dark	17.0656	16.1933	17.6066
12 h after dark	11.1386	10.1552	11.9195