condition	mean	min	max
0 h after light	15.4682	14.7819	16.1545
4 h after light	22.01705	21.9079	22.1262
8 h after light	28.045299999999997	27.9055	28.1851
4 h after dark	31.076900000000002	29.7574	32.3964
8 h after dark	23.7925	23.0944	24.4906
12 h after dark	21.100299999999997	20.868	21.3326