condition mean min max 0 h after light 0.171544 0.165222 0.177866 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0942995 0.0 0.188599 2 h after dark 0.4252475 0.0 0.850495 4 h after dark 0.57382 0.1588 0.98884 8 h after dark 0.544264 0.371674 0.716854 12 h after dark 0.2544245 0.0 0.508849