condition	mean	min	max
4 h after light	8.129249999999999	8.04021	8.203619999999999
8 h after light	8.281376666666667	8.10781	8.43153
12 h after light	8.656243333333334	8.48245	8.82041
4 h after dark	8.64902	8.459539999999999	8.80592
8 h after dark	8.585716666666666	8.33751	8.83262
12 h after dark	8.438843333333335	8.26624	8.525960000000001