condition	mean	min	max
4 h after light	4.660583333333333	4.50408	4.8979
8 h after light	4.660316666666667	4.47375	4.93746
12 h after light	4.4283166666666665	4.32152	4.55841
4 h after dark	4.65167	4.55799	4.817880000000001
8 h after dark	4.83151	4.80809	4.8524
12 h after dark	5.06135	4.81909	5.32556