condition	mean	min	max
4 h after light	5.706189999999999	5.66928	5.7431
8 h after light	14.209900000000001	13.5127	14.9071
12 h after light	18.7448	16.8377	20.6519
4 h after dark	21.8583	19.8618	23.8548
8 h after dark	16.906	15.8572	17.9548
12 h after dark	16.0978	15.7348	16.4608