condition	mean	min	max
4 h after light	7.68212	7.0681899999999995	8.13217
8 h after light	7.581309999999999	7.18182	8.15087
12 h after light	7.448806666666666	6.60995	8.037519999999999
4 h after dark	7.51547	6.9142	8.2061
8 h after dark	7.616106666666666	7.1985399999999995	7.88404
12 h after dark	7.497273333333333	6.9687600000000005	7.8648