condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.04188805 0.0 0.0837761 8 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.041739 0.0 0.083478