condition	mean	min	max
0 h after light	15.24665	14.6766	15.8167
4 h after light	14.836649999999999	13.8126	15.8607
8 h after light	14.95965	14.3003	15.619
4 h after dark	21.119500000000002	19.8743	22.3647
8 h after dark	16.824350000000003	16.785	16.8637
12 h after dark	19.44075	19.1169	19.7646