condition	mean	min	max
4 h after light	7.47417	7.027480000000001	8.04991
8 h after light	7.7974	7.17507	8.75545
12 h after light	7.69916	7.12398	8.61078
4 h after dark	7.45438	7.011639999999999	8.00217
8 h after dark	7.5202566666666675	7.004060000000001	7.84438
12 h after dark	7.340926666666667	6.981260000000001	7.63934