condition mean min max 4 h after light 5.393253333333333 5.24302 5.55465 8 h after light 5.26743 5.19268 5.36533 12 h after light 5.17292 5.08263 5.29074 4 h after dark 5.266043333333333 5.23865 5.31381 8 h after dark 5.22661 5.050680000000001 5.39304 12 h after dark 5.14023 5.04138 5.19763