condition	mean	min	max
4 h after light	7.62734	7.540780000000001	7.674460000000001
8 h after light	7.62308	7.41458	7.743519999999999
12 h after light	7.831246666666667	7.674360000000001	7.9161
4 h after dark	7.973586666666667	7.64041	8.14836
8 h after dark	7.991186666666667	7.722569999999999	8.21641
12 h after dark	8.134333333333334	7.867710000000001	8.28668