condition	mean	min	max
4 h after light	8.81836	8.7002	8.95383
8 h after light	9.06952	8.92995	9.1906
12 h after light	8.989403333333334	8.89868	9.12379
4 h after dark	8.83489	8.6416	8.96457
8 h after dark	8.702003333333334	8.66992	8.71974
12 h after dark	8.976813333333334	8.81272	9.16736