condition mean min max 4 h after light 0.2688335 0.229405 0.308262 8 h after light 0.6360925 0.585363 0.686822 12 h after light 0.7617815 0.303453 1.22011 4 h after dark 1.37456 1.14947 1.59965 8 h after dark 0.548474 0.501019 0.595929 12 h after dark 0.5416275 0.197301 0.885954