condition	mean	min	max
4 h after light	8.359820000000001	8.2793	8.437330000000001
8 h after light	8.928913333333334	8.807139999999999	9.03992
12 h after light	8.95021	8.870989999999999	9.01216
4 h after dark	8.909033333333333	8.86406	8.938039999999999
8 h after dark	8.739763333333332	8.64913	8.81129
12 h after dark	8.59969	8.543280000000001	8.640239999999999