condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0163995 0.0 0.0491985 12 h after light 0.010778566666666668 0.0 0.0323357 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