condition mean min max 3 h after light 5.23928 3.70778 7.022 6 h after light 3.0272533333333334 2.153 4.24552 9 h after light 2.28382 1.53882 3.5075 12 h after light 2.36947 1.4135 4.02925 3 h after dark 1.7928 1.39263 2.57089 6 h after dark 1.4427033333333334 1.06427 1.6544 9 h after dark 2.9716666666666667 2.87797 3.04658 12 h after dark 2.211405 2.06866 2.35415