condition	mean	min	max
0 h after light	6.213495	5.8437	6.58329
4 h after light	3.2934799999999997	2.97185	3.61511
8 h after light	3.2982750000000003	2.96897	3.62758
4 h after dark	4.715535	4.58323	4.84784
8 h after dark	4.94544	4.84227	5.04861
12 h after dark	5.19578	4.23322	6.15834