condition	mean	min	max
4 h after light	7.623606666666666	7.572430000000001	7.70149
8 h after light	7.56125	7.51116	7.62966
12 h after light	7.601073333333333	7.5316399999999994	7.66303
4 h after dark	7.61139	7.449089999999999	7.73773
8 h after dark	7.47688	7.412319999999999	7.54281
12 h after dark	7.6599900000000005	7.57958	7.808560000000001