condition	mean	min	max
4 h after light	7.277755	6.73998	7.81553
8 h after light	4.8039	4.72648	4.88132
12 h after light	4.03723	3.88149	4.19297
4 h after dark	6.521953333333333	5.9096	6.90207
8 h after dark	5.72665	5.37949	6.21142
12 h after dark	8.070026666666667	7.78216	8.56741