condition	mean	min	max
0 h after light	20.99435	19.2053	22.7834
4 h after light	10.930245	9.91039	11.9501
8 h after light	9.160599999999999	8.70056	9.62064
4 h after dark	18.1599	17.4552	18.8646
8 h after dark	17.026	15.0703	18.9817
12 h after dark	17.499	16.6437	18.3543