condition	mean	min	max
0 h after light	16.2206	15.513	16.9282
4 h after light	7.49769	7.37435	7.62103
8 h after light	6.934825	5.92173	7.94792
4 h after dark	11.3112	10.3794	12.243
8 h after dark	9.451645	9.35432	9.54897
12 h after dark	11.37534	9.47168	13.279