condition	mean	min	max
4 h after light	14.490950000000002	13.0592	15.9227
8 h after light	9.31415	8.93502	9.69328
12 h after light	4.774965	4.28147	5.26846
4 h after dark	4.057426666666666	3.55491	4.50492
8 h after dark	3.9575766666666663	3.30925	4.48037
12 h after dark	7.217443333333333	6.59035	7.56767