condition mean min max 0 h after light 16.595 16.1356 17.0544 4 h after light 1.572538 0.965396 2.17968 8 h after light 0.4686855 0.0 0.937371 4 h after dark 7.920525 5.60525 10.2358 8 h after dark 10.629255 8.39821 12.8603 12 h after dark 5.495405 2.15969 8.83112