condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.018167833333333334 0.0 0.0545035 9 h after light 0.0 0.0 0.0 12 h after light 0.067417 0.0 0.154149 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 0.02457015 0.0 0.0491403