condition	mean	min	max
4 h after light	3.63299	3.41327	3.85271
8 h after light	2.235595	1.78369	2.6875
12 h after light	2.19646	1.80601	2.58691
4 h after dark	3.35019	2.53522	4.16516
8 h after dark	3.08587	2.74328	3.42846
12 h after dark	2.054735	1.87842	2.23105