condition	mean	min	max
4 h after light	13.4959	10.4946	16.5182
8 h after light	10.43545	3.61435	15.8062
12 h after light	14.81081	8.95913	23.8249
4 h after dark	16.2119	11.9135	20.9704
8 h after dark	17.6336	16.0143	19.3606
12 h after dark	23.1629	20.4196	25.6389