condition mean min max 4 h after light 6.26939 3.78232 7.877 8 h after light 5.193336666666667 1.25469 8.89597 12 h after light 6.76141 4.90642 9.3735 4 h after dark 9.70476 7.23738 11.6332 8 h after dark 8.426413333333333 6.20152 10.7517 12 h after dark 5.840193333333334 5.12012 6.50106