condition	mean	min	max
4 h after light	8.561276666666666	8.386339999999999	8.690610000000001
8 h after light	7.025816666666667	6.9812899999999996	7.07538
12 h after light	7.903379999999999	7.88552	7.933489999999999
4 h after dark	8.46646	8.3238	8.60852
8 h after dark	9.552423333333332	9.230089999999999	9.75799
12 h after dark	10.191116666666668	10.05671	10.29208