diff --git a/notebooks/01-Exploration.ipynb b/notebooks/01-Exploration.ipynb
index e08c869..7395104 100644
--- a/notebooks/01-Exploration.ipynb
+++ b/notebooks/01-Exploration.ipynb
@@ -1794,7 +1794,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 86,
+   "execution_count": 91,
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    "outputs": [
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@@ -2697,9 +2697,9 @@
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     "set_top_n(30)\n",
     "data = [\n",
     "    go.Bar(\n",
-    "        x=primary_emails[:TOP_N].sort_values(by=['orcid'], ascending=False).index,\n",
-    "        y=primary_emails[:TOP_N].sort_values(by=['orcid'], ascending=False)['orcid']\n",
+    "        x=primary_emails.sort_values(by=['orcid'], ascending=False).index[:TOP_N],\n",
+    "        y=primary_emails.sort_values(by=['orcid'], ascending=False)['orcid'][:TOP_N]\n",
     "    )\n",
     "]\n",
     "\n",
@@ -3016,9 +3016,940 @@
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    "source": [
     "set_top_n(30)\n",
     "data = [\n",
@@ -3052,7 +3983,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 74,
+   "execution_count": 90,
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\"white\", \"linecolor\": \"white\", \"ticks\": \"\"}, \"baxis\": {\"gridcolor\": \"white\", \"linecolor\": \"white\", \"ticks\": \"\"}, \"bgcolor\": \"#E5ECF6\", \"caxis\": {\"gridcolor\": \"white\", \"linecolor\": \"white\", \"ticks\": \"\"}}, \"title\": {\"x\": 0.05}, \"xaxis\": {\"automargin\": true, \"gridcolor\": \"white\", \"linecolor\": \"white\", \"ticks\": \"\", \"title\": {\"standoff\": 15}, \"zerolinecolor\": \"white\", \"zerolinewidth\": 2}, \"yaxis\": {\"automargin\": true, \"gridcolor\": \"white\", \"linecolor\": \"white\", \"ticks\": \"\", \"title\": {\"standoff\": 15}, \"zerolinecolor\": \"white\", \"zerolinewidth\": 2}}}, \"title\": {\"text\": \"Top 30 other email domains\"}, \"xaxis\": {\"range\": [-0.5, 29.5], \"tickangle\": 45, \"tickfont\": {\"size\": 12}}},                        {\"responsive\": true}                    ).then(function(){\n",
+       "<div>                            <div id=\"5e7e5a2b-e6c0-4d40-86d0-df66a2fa2a4d\" class=\"plotly-graph-div\" style=\"height:525px; width:100%;\"></div>            <script type=\"text/javascript\">                require([\"plotly\"], function(Plotly) {                    window.PLOTLYENV=window.PLOTLYENV || {};                                    if (document.getElementById(\"5e7e5a2b-e6c0-4d40-86d0-df66a2fa2a4d\")) {                    Plotly.newPlot(                        \"5e7e5a2b-e6c0-4d40-86d0-df66a2fa2a4d\",                        [{\"type\": \"bar\", \"x\": [\"gmail.com\", \"hotmail.com\", \"yahoo.com\", \"163.com\", \"qq.com\", \"outlook.com\", \"126.com\", \"usp.br\", \"ieee.org\", \"mail.ru\", \"yahoo.com.br\", \"unesp.br\", \"sbs.ox.ac.uk\", \"yuhs.ac\", \"naver.com\", \"icloud.com\", \"ua.pt\", \"uq.edu.au\", \"foxmail.com\", \"cam.ac.uk\", \"ukr.net\", \"law.ox.ac.uk\", \"imperial.ac.uk\", \"mit.edu\", \"monash.edu\", \"ucl.ac.uk\", \"education.ox.ac.uk\", 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        "                            \n",
-       "var gd = document.getElementById('88171828-389f-4821-bf16-927a1eab3b5c');\n",
+       "var gd = document.getElementById('5e7e5a2b-e6c0-4d40-86d0-df66a2fa2a4d');\n",
        "var x = new MutationObserver(function (mutations, observer) {{\n",
        "        var display = window.getComputedStyle(gd).display;\n",
        "        if (!display || display === 'none') {{\n",
@@ -3990,8 +4921,8 @@
     "set_top_n(30)\n",
     "data = [\n",
     "    go.Bar(\n",
-    "        x=grouped_other_emails[:TOP_N].sort_values(by=['orcid'], ascending=False).index,\n",
-    "        y=grouped_other_emails[:TOP_N].sort_values(by=['orcid'], ascending=False)['orcid']\n",
+    "        x=grouped_other_emails.sort_values(by=['orcid'], ascending=False).index[:TOP_N],\n",
+    "        y=grouped_other_emails.sort_values(by=['orcid'], ascending=False)['orcid'][:TOP_N]\n",
     "    )\n",
     "]\n",
     "\n",
@@ -6965,8 +7896,8 @@
     "set_top_n(30)\n",
     "data = [\n",
     "    go.Bar(\n",
-    "        x=grouped_urls[:TOP_N].sort_values(by=['orcid'], ascending=False).index,\n",
-    "        y=grouped_urls[:TOP_N].sort_values(by=['orcid'], ascending=False)['orcid']\n",
+    "        x=grouped_urls.sort_values(by=['orcid'], ascending=False).index[:TOP_N],\n",
+    "        y=grouped_urls.sort_values(by=['orcid'], ascending=False)['orcid'][:TOP_N]\n",
     "    )\n",
     "]\n",
     "\n",