condition	mean	min	max
4 h after light	3.7198200000000003	3.62062	3.81902
8 h after light	3.578865	3.45659	3.70114
12 h after light	3.74351	3.58501	3.90201
4 h after dark	5.821503333333333	4.63192	6.59561
8 h after dark	4.19725	3.54114	5.0593
12 h after dark	4.0179366666666665	3.53912	4.30909