condition	mean	min	max
4 h after light	1.817385	1.49654	2.13823
8 h after light	2.18304	2.09231	2.27377
12 h after light	1.843755	1.70395	1.98356
4 h after dark	2.61802	2.44556	2.79048
8 h after dark	1.8647	1.59698	2.13242
12 h after dark	2.107965	2.01645	2.19948