condition	mean	min	max
4 h after light	8.8186	6.6715	10.9657
8 h after light	10.77553	9.44886	12.1022
12 h after light	18.566200000000002	16.277	20.8554
4 h after dark	13.226949999999999	12.2448	14.2091
8 h after dark	18.5247	18.4528	18.5966
12 h after dark	12.12205	10.7783	13.4658