condition mean min max 4 h after light 0.541228 0.334859 0.747597 8 h after light 0.781815 0.746083 0.817547 12 h after light 1.1436250000000001 0.87903 1.40822 4 h after dark 1.5277949999999998 1.0283 2.02729 8 h after dark 0.7046479999999999 0.647348 0.761948 12 h after dark 0.7970410000000001 0.571532 1.02255