condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.063289 0.0 0.189867 9 h after light 0.019464033333333335 0.0 0.0583921 12 h after light 0.13209233333333334 0.0 0.396277 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.072123 0.0 0.216369