condition mean min max 4 h after light 11.5404745 10.289396 12.791553 8 h after light 8.380343499999999 8.012618 8.748069 12 h after light 10.289062999999999 9.305719 11.272407 4 h after dark 8.678213 8.305215 9.051211 8 h after dark 8.672532 8.221117 9.123947 12 h after dark 10.112581 10.112581 10.112581