condition mean min max 4 h after light 11.576045 8.86619 14.2859 8 h after light 8.307725 7.58104 9.03441 12 h after light 6.80819 6.79723 6.81915 4 h after dark 8.543853333333333 8.1256 9.03025 8 h after dark 9.169873333333333 8.25747 10.5793 12 h after dark 12.807866666666666 11.5864 13.7495