condition	mean	min	max
4 h after light	1.95275	1.86191	2.04359
8 h after light	2.509385	2.22921	2.78956
12 h after light	2.34843	2.02555	2.67131
4 h after dark	5.84883	5.75127	5.98467
8 h after dark	5.007986666666667	4.88347	5.13338
12 h after dark	4.792346666666667	4.05133	5.34369