diff --git a/module3/exo3/exercice_en.ipynb b/module3/exo3/exercice_en.ipynb
index 81b32373476e427fae1683987625c3b54803a2af..7bb6b6245488d9bff026d8dd9337260de17e4a29 100644
--- a/module3/exo3/exercice_en.ipynb
+++ b/module3/exo3/exercice_en.ipynb
@@ -412,6 +412,94 @@
     "plt.show()"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "    Year  Minimum of CO2  Maximum of CO2  Mean of CO2\n",
+      "0   1958          313.21          317.51   315.335000\n",
+      "1   1959          313.33          318.29   315.980833\n",
+      "2   1960          313.83          320.03   316.909167\n",
+      "3   1961          314.99          320.58   317.643333\n",
+      "4   1962          315.42          321.02   318.454167\n",
+      "5   1963          315.98          322.24   318.991667\n",
+      "6   1964          316.71          322.25   319.202222\n",
+      "7   1965          317.30          322.17   320.037500\n",
+      "8   1966          318.10          324.08   321.367500\n",
+      "9   1967          319.25          325.00   322.178333\n",
+      "10  1968          320.25          325.57   323.050000\n",
+      "11  1969          321.78          327.38   324.620833\n",
+      "12  1970          323.06          328.13   325.681667\n",
+      "13  1971          323.36          328.93   326.320000\n",
+      "14  1972          324.84          330.07   327.456667\n",
+      "15  1973          327.19          332.48   329.681667\n",
+      "16  1974          327.38          333.10   330.250833\n",
+      "17  1975          328.35          333.98   331.160833\n",
+      "18  1976          328.95          334.89   332.161667\n",
+      "19  1977          331.17          336.76   333.910833\n",
+      "20  1978          332.56          338.02   335.515000\n",
+      "21  1979          333.87          339.48   336.860833\n",
+      "22  1980          335.90          341.48   338.700000\n",
+      "23  1981          336.71          342.93   339.951667\n",
+      "24  1982          337.88          344.16   341.150833\n",
+      "25  1983          339.89          345.77   342.798333\n",
+      "26  1984          341.13          347.52   344.498333\n",
+      "27  1985          342.77          348.92   345.890000\n",
+      "28  1986          344.16          350.19   347.134167\n",
+      "29  1987          346.09          351.84   348.856667\n",
+      "..   ...             ...             ...          ...\n",
+      "38  1996          359.32          365.29   362.511667\n",
+      "39  1997          360.08          366.68   363.649167\n",
+      "40  1998          363.80          369.19   366.523333\n",
+      "41  1999          364.54          371.04   368.214167\n",
+      "42  2000          366.53          371.74   369.384167\n",
+      "43  2001          367.88          373.94   370.938333\n",
+      "44  2002          370.18          375.48   373.022500\n",
+      "45  2003          372.92          378.28   375.572500\n",
+      "46  2004          373.99          380.56   377.307500\n",
+      "47  2005          376.39          382.21   379.567500\n",
+      "48  2006          378.77          384.89   381.774167\n",
+      "49  2007          380.83          386.38   383.563333\n",
+      "50  2008          382.75          388.48   385.418333\n",
+      "51  2009          384.32          390.15   387.343333\n",
+      "52  2010          386.85          393.24   389.914167\n",
+      "53  2011          388.98          394.33   391.695000\n",
+      "54  2012          391.09          396.96   393.947500\n",
+      "55  2013          393.47          400.06   396.649167\n",
+      "56  2014          395.49          401.98   398.706667\n",
+      "57  2015          397.43          404.03   400.867500\n",
+      "58  2016          400.94          407.60   404.207500\n",
+      "59  2017          403.20          409.84   406.515833\n",
+      "60  2018          405.53          411.23   408.527500\n",
+      "61  2019          408.40          414.75   411.424167\n",
+      "62  2020          411.12          417.16   413.947500\n",
+      "63  2021          412.93          418.95   416.113333\n",
+      "64  2022          415.31          420.78   418.216667\n",
+      "65  2023          418.06          423.78   420.773333\n",
+      "66  2024          421.60          426.70   424.347500\n",
+      "67  2025          426.42          430.20   428.118000\n",
+      "\n",
+      "[68 rows x 4 columns]\n"
+     ]
+    }
+   ],
+   "source": [
+    "yearly_stats=df.groupby('Year')['CO2'].agg(['min', 'max', 'mean']).reset_index()\n",
+    "yearly_stats.columns = ['Year', 'Minimum of CO2', 'Maximum of CO2', 'Mean of CO2']\n",
+    "\n",
+    "print(yearly_stats)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": []
+  },
   {
    "cell_type": "code",
    "execution_count": null,