condition	mean	min	max
0 h after light	16.98415	16.8678	17.1005
4 h after light	10.01096	7.19012	12.8318
8 h after light	9.434585	6.44507	12.4241
4 h after dark	15.27655	14.2166	16.3365
8 h after dark	12.3891	10.2524	14.5258
12 h after dark	13.73875	11.876	15.6015