condition	mean	min	max
4 h after light	6.51678	6.29095	6.74261
8 h after light	4.36615	3.87292	4.85938
12 h after light	4.56074	4.491	4.63048
4 h after dark	5.88381	4.28236	7.48526
8 h after dark	5.9611	5.70676	6.21544
12 h after dark	5.39861	4.03645	6.76077