condition	mean	min	max
4 h after light	5.344545	4.84437	5.84472
8 h after light	3.79211	3.72337	3.86085
12 h after light	3.868105	3.02533	4.71088
4 h after dark	4.13785	3.32143	5.08843
8 h after dark	5.727686666666667	5.28294	6.51639
12 h after dark	6.252256666666667	5.72876	6.52425