condition	mean	min	max
4 h after light	12.87555	11.3418	14.4093
8 h after light	15.532350000000001	15.2355	15.8292
12 h after light	19.0676	17.4835	20.6517
4 h after dark	23.080033333333333	22.3068	24.3879
8 h after dark	24.4037	23.8876	24.9008
12 h after dark	15.978	15.2116	17.2531