condition	mean	min	max
0 h after light	6.448180000000001	6.33314	6.56322
4 h after light	6.71463	6.53122	6.89804
8 h after light	6.905725	6.69779	7.11366
4 h after dark	8.276735	6.7919	9.76157
8 h after dark	6.911300000000001	6.86831	6.95429
12 h after dark	6.5536650000000005	5.54685	7.56048