condition	mean	min	max
4 h after light	2.340235	1.9363	2.74417
8 h after light	2.529485	2.51449	2.54448
12 h after light	4.00676	3.77137	4.24215
4 h after dark	4.354175	4.11982	4.58853
8 h after dark	3.18574	2.77695	3.59453
12 h after dark	3.289945	3.06711	3.51278