condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.144624 0.0 0.289248 8 h after light 0.1465209 0.0995448 0.193497 4 h after dark 0.240676 0.192085 0.289267 8 h after dark 0.1448731 0.0971232 0.192623 12 h after dark 0.0 0.0 0.0