condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.15522766666666668 0.0 0.465683 3 h after dark 0.0 0.0 0.0 6 h after dark 0.13118133333333334 0.0 0.393544 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0