condition	mean	min	max
4 h after light	2.461395	1.63243	3.29036
8 h after light	2.877325	2.87091	2.88374
12 h after light	5.660475	5.00898	6.31197
4 h after dark	8.21749	7.55221	8.88277
8 h after dark	6.77044	6.58195	6.95893
12 h after dark	4.9531600000000005	3.99595	5.91037