condition	mean	min	max
4 h after light	7.34868	7.10858	7.656839999999999
8 h after light	7.761303333333333	7.51041	7.94544
12 h after light	7.733923333333333	7.67197	7.819369999999999
4 h after dark	7.68713	7.42467	7.90533
8 h after dark	7.61453	7.46357	7.854410000000001
12 h after dark	7.43964	7.3432	7.5879199999999996