diff --git a/swh/web/misc/urls.py b/swh/web/misc/urls.py
--- a/swh/web/misc/urls.py
+++ b/swh/web/misc/urls.py
@@ -14,6 +14,7 @@
 from django.shortcuts import render
 
 from swh.web.common import archive
+from swh.web.common.utils import parse_iso8601_date_to_utc
 from swh.web.config import get_config
 from swh.web.misc.metrics import prometheus_metrics
 
@@ -27,16 +28,48 @@
     return render(request, "misc/jslicenses.html", {"jslicenses_data": jslicenses_data})
 
 
+# historical data for backfilling missing counter values
+# https://forge.softwareheritage.org/T2619
+_stat_counters_backfill = {
+    "2015-09-01": {"revision": 0, "origin": 0, "content": 0},
+    "2016-07-01": {"revision": 594305600, "origin": 22777052},
+    "2016-09-14": {"revision": 644628800, "origin": 25258776},
+    "2016-11-24": {"revision": 704845952, "origin": 53488904},
+    "2017-05-10": {"revision": 780882048, "origin": 58257484},
+    "2017-09-26": {"revision": 853277241, "origin": 65546644},
+    "2018-01-24": {"revision": 943061517, "origin": 71814787},
+    "2018-02-13": {"revision": 946216028, "origin": 81655813},
+    "2018-03-25": {"revision": 980390191, "origin": 83797945},
+    "2018-10-04": {"revision": 1126348335, "origin": 85202432},
+    "2019-01-27": {"revision": 1248389319, "origin": 88288721},
+    "2019-04-08": {"revision": 1293870115, "origin": 88297714},
+    "2019-06-27": {"revision": 1326776432, "origin": 89301694},
+    "2019-07-24": {"revision": 1358421267, "origin": 89601149},
+    "2019-09-22": {"revision": 1379380527, "origin": 90231104},
+    "2019-09-29": {"revision": 1385477933, "origin": 90487661},
+    "2020-01-01": {"revision": 1414420369, "origin": 91400586},
+    "2020-02-06": {"revision": 1428955761, "origin": 91512130},
+    "2020-04-07": {"revision": 1590436149, "origin": 107875943},
+    "2020-05-17": {"revision": 1717420203, "origin": 121172621},
+    "2020-05-27": {"revision": 1744034936, "origin": 123781438},
+}
+
+
 def _stat_counters(request):
     stat_counters = archive.stat_counters()
     url = get_config()["history_counters_url"]
-    stat_counters_history = "null"
-    if url:
-        try:
-            response = requests.get(url, timeout=5)
-            stat_counters_history = json.loads(response.text)
-        except Exception as exc:
-            sentry_sdk.capture_exception(exc)
+    stat_counters_history = {}
+    try:
+        response = requests.get(url, timeout=5)
+        stat_counters_history = json.loads(response.text)
+        for d, object_counts in _stat_counters_backfill.items():
+            # convert date to javascript timestamp (in ms)
+            timestamp = int(parse_iso8601_date_to_utc(d).timestamp()) * 1000
+            for object_type, object_count in object_counts.items():
+                stat_counters_history[object_type].append([timestamp, object_count])
+    except Exception as exc:
+        sentry_sdk.capture_exception(exc)
+
     counters = {
         "stat_counters": stat_counters,
         "stat_counters_history": stat_counters_history,