diff --git a/trace-analysis.ipynb b/trace-analysis.ipynb
index ad85793..d093228 100644
--- a/trace-analysis.ipynb
+++ b/trace-analysis.ipynb
@@ -218,6 +218,22 @@
     }
    }
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "for topic in topics:\n",
+    "    topic: TrTopic\n",
+    "    print(f\"{topic.name:.<120s} | {sum(map(lambda p: len(p.instances), topic.publishers))}\")"
+   ],
+   "metadata": {
+    "collapsed": false,
+    "pycharm": {
+     "name": "#%%\n"
+    }
+   }
+  },
   {
    "cell_type": "markdown",
    "source": [
@@ -1448,4 +1464,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 2
-}
\ No newline at end of file
+}