condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.026185833333333335 0.0 0.0785575 12 h after light 0.0172106 0.0 0.0516318 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0