condition mean min max 4 h after light 0.359565 0.314339 0.404791 8 h after light 0.1911835 0.190972 0.191395 12 h after light 0.1563755 0.138601 0.17415 4 h after dark 0.1913695 0.154416 0.228323 8 h after dark 0.18614550000000002 0.166337 0.205954 12 h after dark 0.212622 0.210271 0.214973