condition	mean	min	max
4 h after light	8.205656666666666	8.03271	8.42578
8 h after light	8.1129	7.942710000000001	8.435319999999999
12 h after light	7.936276666666667	7.78112	8.06333
4 h after dark	8.098483333333334	7.981139999999999	8.22123
8 h after dark	8.045206666666665	7.7998199999999995	8.24209
12 h after dark	7.951950000000001	7.779310000000001	8.199910000000001