condition	mean	min	max
0 h after light	15.8098	13.1945	18.4251
4 h after light	8.20006	7.33321	9.06691
8 h after light	10.986855	7.73311	14.2406
4 h after dark	11.80625	10.6026	13.0099
8 h after dark	14.4346	14.1763	14.6929
12 h after dark	16.028	12.8898	19.1662