condition	mean	min	max
4 h after light	18.1356945	17.595479	18.67591
8 h after light	16.440692	15.233538	17.647846
12 h after light	15.222435	14.755499	15.689371
4 h after dark	17.595479	17.595479	17.595479
8 h after dark	18.820872	16.720946	20.920798
12 h after dark	17.653379	17.653379	17.653379