condition mean min max 1 h after light 8.070517668 7.1775903329999995 8.963445003 3 h after light 7.942012613 7.448766288 8.55562389 5 h after light 9.147877901333333 8.469028643 10.12097152 7 h after light 8.54254568 7.2208464779999995 9.226845962 9 h after light 8.431777657 7.763836052 9.758158214 11 h after light 8.231204298333333 7.724157272 9.05366524 1 h after dark 11.400419963666666 8.846651341 14.00907701 3 h after dark 9.551722258666667 8.134683239 12.29027484 5 h after dark 8.744547895333334 8.471507621 8.881129048 7 h after dark 8.864959158333333 8.081270965 9.598027945 9 h after dark 8.387544015666666 7.788338951 9.091081897 11 h after dark 8.730357133666667 8.59781677 8.837662647