condition mean min max 0 h after light 0.05272235 0.0351065 0.0703382 4 h after light 0.0540784 0.034613 0.0735438 8 h after light 0.0873331 0.0357362 0.13893 4 h after dark 0.0517185 0.0 0.103437 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0171478 0.0 0.0342956