condition	mean	min	max
4 h after light	8.14238	8.0205	8.24129
8 h after light	8.116999999999999	8.097389999999999	8.140939999999999
12 h after light	8.74283	8.69497	8.812339999999999
4 h after dark	8.539556666666666	8.458789999999999	8.59096
8 h after dark	8.409536666666668	8.35483	8.461160000000001
12 h after dark	8.22841	8.06073	8.333260000000001