condition	mean	min	max
4 h after light	17.2468	15.1968	19.2968
8 h after light	14.3535	12.6421	16.0649
12 h after light	8.223265	7.44906	8.99747
4 h after dark	13.859433333333333	12.9461	14.9514
8 h after dark	12.032399999999999	11.5177	13.0275
12 h after dark	15.143066666666666	13.3218	16.1532