diff --git a/examples/produce_data_manyStations.ipynb b/examples/produce_data_manyStations.ipynb
index f712a3a02041f72bf30cff13f1a9acb21549b820..b3c25fbbb8d3d53e7430ff4e3d64d80fd7d28fb9 100644
--- a/examples/produce_data_manyStations.ipynb
+++ b/examples/produce_data_manyStations.ipynb
@@ -54,7 +54,9 @@
     "grid = RegularGrid( lat_resolution=1.9, lon_resolution=2.5, )\n",
     "\n",
     "configs = dict()\n",
-    "for year in range (0,19):\n",
+    "##for educational reasons the extraction of only two years is fine:-)\n",
+    "#for year in range (0,19):\n",
+    "for year in range (0,2):\n",
     "    valid_data = Config(\n",
     "        grid,\n",
     "        TimeSample( start=dt(2000+year,1,1), end=dt(2000+year,12,31), sampling=\"daily\"),#possibly adopt range:-)\n",