condition	mean	min	max
4 h after light	18.809649999999998	16.8722	20.7471
8 h after light	10.1121	9.3893	10.8349
12 h after light	8.86917	8.23077	9.50757
4 h after dark	9.36516	8.08719	10.2468
8 h after dark	11.979066666666666	10.6242	13.2555
12 h after dark	12.534866666666666	12.2454	12.9355