condition mean min max 4 h after light 12.2750075 10.769794 13.780221 8 h after light 9.5490545 9.216053 9.882056 12 h after light 10.7030875 10.141265 11.26491 4 h after dark 9.736355 9.683787 9.788923 8 h after dark 11.678542499999999 10.881151 12.475934 12 h after dark 10.141265 10.141265 10.141265