condition	mean	min	max
4 h after light	4.239935	4.23407	4.2458
8 h after light	3.954225	3.87122	4.03723
12 h after light	5.26186	4.87803	5.64569
4 h after dark	4.8141	3.54186	5.88086
8 h after dark	4.396543333333333	3.93945	5.11419
12 h after dark	3.8960133333333333	3.41115	4.62957