condition	mean	min	max
4 h after light	7.283693333333334	7.25192	7.33898
8 h after light	7.127443333333333	7.01895	7.219689999999999
12 h after light	6.9731700000000005	6.7630300000000005	7.12765
4 h after dark	6.866046666666667	6.7602199999999995	7.017110000000001
8 h after dark	6.94553	6.725169999999999	7.11155
12 h after dark	7.198683333333333	7.03108	7.357539999999999