condition	mean	min	max
4 h after light	5.105486666666667	5.05642	5.15115
8 h after light	5.068533333333334	4.91984	5.1494800000000005
12 h after light	4.9902500000000005	4.90796	5.0448
4 h after dark	5.11867	5.06254	5.17227
8 h after dark	5.040183333333333	4.73796	5.20595
12 h after dark	5.09604	5.02855	5.1923900000000005