diff --git a/display/generate_html.py b/display/generate_html.py
index 2d2c533..72880da 100644
--- a/display/generate_html.py
+++ b/display/generate_html.py
@@ -4,7 +4,7 @@ import plotly.express as px
 
 TABLE_NAME = "stats"
 
-INTERVAL = 20  # on cron interval is 10min
+INTERVALS = [50, 100, 1000]  # on cron interval is 10min
 
 
 # Create your connection.
@@ -12,10 +12,19 @@ cnx = sqlite3.connect('data.sqlite')
 
 df = pd.read_sql_query(f"SELECT * FROM {TABLE_NAME}", cnx)
 df = df.set_index("date")
-df = df[::INTERVAL]
 print(f"Find {len(df)} items")
 
+df["granu"] = 1
 
-fig = px.area(df, title="Wide-Form Input")
+dfs = pd.DataFrame()
+for i in INTERVALS:
+    dfi = df[::i].copy()
+    dfi["granu"] = i
+    dfs = dfs.append(dfi)
+
+print(f"Find {len(dfs)} items")
+fig = px.area(dfs, title="Wide-Form Input", animation_frame="granu")
 fig.for_each_trace(lambda trace: trace.update(fillcolor = trace.line.color))
+fig["layout"].pop("updatemenus") # optional, drop animation buttons
+fig.update_layout(transition = {'duration': 1e12})
 fig.write_html("stats.html", include_plotlyjs="cdn")