condition	mean	min	max
4 h after light	8.19132	8.01925	8.36861
8 h after light	8.161200000000001	8.0478	8.23584
12 h after light	8.066123333333334	8.02581	8.14621
4 h after dark	7.967956666666667	7.79767	8.12358
8 h after dark	7.9958366666666665	7.9245600000000005	8.04523
12 h after dark	7.786980000000001	7.735410000000001	7.87372