condition	mean	min	max
4 h after light	6.903535	5.73369	8.07338
8 h after light	7.10013	6.88369	7.31657
12 h after light	6.982385000000001	6.2636	7.70117
4 h after dark	7.675016666666667	7.18236	8.27359
8 h after dark	7.42364	7.24447	7.77269
12 h after dark	6.962903333333333	6.28165	7.67727