condition	mean	min	max
4 h after light	18.2045525	16.803568	19.605537
8 h after light	18.852308999999998	16.803568	20.90105
12 h after light	14.1294875	13.97651	14.282465
4 h after dark	17.850071999999997	16.803568	18.896576
8 h after dark	17.77442	16.221496	19.327344
12 h after dark	15.721949	15.721949	15.721949