condition	mean	min	max
0 h after light	2.310695	2.1587	2.46269
4 h after light	1.1348645	0.910529	1.3592
8 h after light	1.340285	1.21823	1.46234
4 h after dark	0.6564515	0.604669	0.708234
8 h after dark	1.571965	1.32485	1.81908
12 h after dark	1.513674	0.922268	2.10508