condition	mean	min	max
4 h after light	14.87865	14.7022	15.0551
8 h after light	12.52595	11.964	13.0879
12 h after light	9.65135	8.9907	10.312
4 h after dark	8.86483	8.53797	9.19169
8 h after dark	8.61376	8.5096	8.71792
12 h after dark	11.60785	11.5037	11.712