condition	mean	min	max
4 h after light	5.4125966666666665	5.291919999999999	5.61426
8 h after light	5.40362	5.25427	5.5827
12 h after light	5.3032200000000005	5.25469	5.36828
4 h after dark	5.303796666666667	5.2245800000000004	5.38206
8 h after dark	5.26318	5.2014	5.30687
12 h after dark	5.366543333333333	5.30305	5.42269