condition	mean	min	max
4 h after light	7.048465	5.96916	8.12777
8 h after light	7.587315	7.50102	7.67361
12 h after light	7.704255	7.51635	7.89216
4 h after dark	10.384766666666668	10.0324	10.7087
8 h after dark	7.38548	7.01558	7.68166
12 h after dark	7.429333333333333	5.80302	10.415