condition	mean	min	max
4 h after light	8.66411	7.959337	9.368883
8 h after light	8.374852	7.511424	9.23828
12 h after light	7.9113085000000005	7.761949	8.060668
4 h after dark	8.564624	8.060668	9.06858
8 h after dark	8.143172499999999	7.306189	8.980156
12 h after dark	7.400907	7.400907	7.400907