condition	mean	min	max
4 h after light	6.31118	6.18232	6.51905
8 h after light	6.27315	5.98664	6.762580000000001
12 h after light	6.074256666666667	5.59015	6.60613
4 h after dark	6.166383333333333	5.83779	6.80583
8 h after dark	6.124373333333333	5.94147	6.41855
12 h after dark	6.05432	5.9930699999999995	6.13823