condition	mean	min	max
4 h after light	8.009653499999999	7.557463	8.461844
8 h after light	7.4176	7.027057	7.808143
12 h after light	8.038319	7.820455	8.256183
4 h after dark	7.6530404999999995	7.485626	7.820455
8 h after dark	7.911156999999999	7.755498	8.066816
12 h after dark	8.411197	8.411197	8.411197