condition	mean	min	max
0 h after light	8.477725	7.30839	9.64706
4 h after light	4.5172	4.11759	4.91681
8 h after light	4.048455	3.58846	4.50845
4 h after dark	5.58434	5.57333	5.59535
8 h after dark	6.38245	5.2502	7.5147
12 h after dark	8.54252	7.81156	9.27348