change year to string to get rid of comma

app.py

@@ -35,7 +35,7 @@ def get_data():
 
     # Ensure year column is int, show blank instead of NaN
     if "year" in df_.columns:
-        df_["year"] = pd.to_numeric(df_["year"], errors="coerce").astype("Int64")
+        df_["year"] = pd.to_numeric(df_["year"], errors="coerce").astype("Int64").astype(str).replace({'<NA>': ''})
     return df_
 
 df = get_data()