condition	mean	min	max
4 h after light	7.92626	7.77842	8.00451
8 h after light	8.194206666666666	7.984710000000001	8.35765
12 h after light	9.01915	8.923919999999999	9.07201
4 h after dark	8.02109	7.692819999999999	8.202119999999999
8 h after dark	7.523663333333333	7.27537	7.76222
12 h after dark	7.219966666666667	6.783180000000001	7.43969