condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.24423436666666665 0.0457591 0.492264 12 h after light 0.16510873333333334 0.0 0.427305 4 h after dark 0.044621 0.0 0.133863 8 h after dark 0.1621855 0.0 0.397135 12 h after dark 0.07841866666666666 0.0 0.235256