condition	mean	min	max
4 h after light	7.034775	6.06512	8.00443
8 h after light	3.34788	3.15839	3.53737
12 h after light	2.155665	1.71918	2.59215
4 h after dark	3.609135	3.06455	4.15372
8 h after dark	4.11266	3.97385	4.25147
12 h after dark	4.931505	4.84374	5.01927