condition	mean	min	max
4 h after light	9.839753333333332	9.72462	9.97655
8 h after light	8.427043333333334	8.19711	8.717789999999999
12 h after light	8.058143333333334	7.86101	8.29974
4 h after dark	7.835583333333333	7.77562	7.91679
8 h after dark	8.39598	8.25985	8.640830000000001
12 h after dark	9.137459999999999	8.870569999999999	9.32418