condition	mean	min	max
4 h after light	8.88372	8.6098	9.028039999999999
8 h after light	8.326043333333335	8.13188	8.48282
12 h after light	8.29655	8.25805	8.36859
4 h after dark	8.53691	8.37851	8.66207
8 h after dark	8.665143333333333	8.34272	8.882760000000001
12 h after dark	8.902743333333333	8.56017	9.14141