condition	mean	min	max
4 h after light	13.1541	11.8916	14.4166
8 h after light	13.89895	13.608	14.1899
12 h after light	15.912	15.0823	16.7417
4 h after dark	19.87265	17.628	22.1173
8 h after dark	17.24335	17.1181	17.3686
12 h after dark	16.53485	16.3037	16.766