condition	mean	min	max
4 h after light	7.732336666666667	7.52463	7.94636
8 h after light	7.5085	7.37695	7.69044
12 h after light	7.353743333333333	7.150239999999999	7.57357
4 h after dark	6.89058	6.59208	7.382280000000001
8 h after dark	6.92263	6.7273	7.220739999999999
12 h after dark	7.024286666666667	6.81948	7.19423