condition	mean	min	max
4 h after light	7.583776666666666	7.5563899999999995	7.623939999999999
8 h after light	7.695363333333333	7.623939999999999	7.7511399999999995
12 h after light	7.59323	7.48866	7.738060000000001
4 h after dark	7.55786	7.366389999999999	7.93703
8 h after dark	7.598	7.4324	7.871460000000001
12 h after dark	7.363183333333333	7.2898	7.40675