condition	mean	min	max
4 h after light	7.704650000000001	7.65728	7.787910000000001
8 h after light	7.648643333333333	7.523860000000001	7.79117
12 h after light	7.644853333333334	7.52751	7.87115
4 h after dark	7.8586133333333335	7.68652	8.07109
8 h after dark	7.9564200000000005	7.79865	8.06296
12 h after dark	7.87489	7.775110000000001	7.998289999999999