condition	mean	min	max
4 h after light	6.254455	5.51975	6.98916
8 h after light	10.6526	10.3144	10.9908
12 h after light	9.46006	8.84562	10.0745
4 h after dark	17.652099999999997	16.2246	19.0796
8 h after dark	14.4637	13.7097	15.2177
12 h after dark	11.303450000000002	10.3885	12.2184