condition	mean	min	max
4 h after light	7.244946666666666	6.68617	7.589289999999999
8 h after light	7.066953333333333	6.64336	7.529319999999999
12 h after light	7.2731200000000005	6.72698	7.82677
4 h after dark	7.228366666666666	6.75563	7.998189999999999
8 h after dark	7.056150000000001	6.24078	7.977110000000001
12 h after dark	7.3479133333333335	6.8644	7.6127899999999995