condition	mean	min	max
4 h after light	4.074186666666666	4.01312	4.115819999999999
8 h after light	3.937326666666667	3.8147900000000003	4.07715
12 h after light	4.103736666666666	3.9516699999999996	4.30336
4 h after dark	4.08538	3.9805	4.19375
8 h after dark	4.01993	3.8724	4.12962
12 h after dark	4.059763333333334	4.0162	4.09328