condition	mean	min	max
4 h after light	6.8617740000000005	6.3919	7.331648
8 h after light	7.969322999999999	7.75594	8.182706
12 h after light	8.292711	8.08883	8.496592
4 h after dark	8.298272	7.317772	9.278772
8 h after dark	7.712446	7.037566	8.387326
12 h after dark	7.75594	7.75594	7.75594