condition	mean	min	max
4 h after light	7.808106666666666	7.70604	7.961069999999999
8 h after light	8.0815	7.886410000000001	8.43618
12 h after light	7.756116666666666	7.6101600000000005	7.93187
4 h after dark	7.773056666666667	7.37332	8.076210000000001
8 h after dark	7.53805	7.28215	7.8388
12 h after dark	6.87562	6.604369999999999	7.0274399999999995