condition	mean	min	max
4 h after light	6.515113333333333	6.12334	6.85553
8 h after light	6.203813333333334	5.85637	6.39925
12 h after light	6.152843333333333	5.96957	6.3299199999999995
4 h after dark	5.759686666666667	5.4587900000000005	5.9122900000000005
8 h after dark	5.78873	5.66432	5.87948
12 h after dark	5.73275	5.6538	5.87616