condition	mean	min	max
4 h after light	4.220536666666667	4.1658	4.32685
8 h after light	4.194826666666667	4.1843900000000005	4.21026
12 h after light	4.14513	4.10347	4.17037
4 h after dark	4.24103	4.0906400000000005	4.33272
8 h after dark	4.1098	4.05671	4.19695
12 h after dark	4.107139999999999	4.02124	4.2012599999999996