diff --git a/module3/exo2/exercice.ipynb b/module3/exo2/exercice.ipynb
index 01858427ffb3e3b4a3f08a679427a8f5ca59954b..c388468073e0cf04a36af5011be97f0866fd452c 100644
--- a/module3/exo2/exercice.ipynb
+++ b/module3/exo2/exercice.ipynb
@@ -1319,11 +1319,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 14,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [],
    "source": [
-    "first_august_week = [pd.Period(pd.Timestamp(y, 9, 1), 'W')\n",
+    "first_sept_week = [pd.Period(pd.Timestamp(y, 9, 1), 'W')\n",
     "                     for y in range(1991,\n",
     "                                    sorted_data.index[-1].year)]"
    ]
@@ -1339,14 +1339,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 21,
    "metadata": {},
    "outputs": [],
    "source": [
     "year = []\n",
     "yearly_incidence = []\n",
-    "for week1, week2 in zip(first_august_week[:-1],\n",
-    "                        first_august_week[1:]):\n",
+    "for week1, week2 in zip(first_sept_week[:-1],\n",
+    "                        first_sept_week[1:]):\n",
     "    one_year = sorted_data['inc'][week1:week2-1]\n",
     "    assert abs(len(one_year)-52) < 2\n",
     "    yearly_incidence.append(one_year.sum())\n",
@@ -1363,16 +1363,16 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": 22,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7fea5d548400>"
+       "<matplotlib.axes._subplots.AxesSubplot at 0x7fea5d44dc50>"
       ]
      },
-     "execution_count": 16,
+     "execution_count": 22,
      "metadata": {},
      "output_type": "execute_result"
     },
@@ -1402,53 +1402,47 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": 23,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "2021     743449\n",
-       "2014    1600941\n",
-       "1991    1659249\n",
-       "1995    1840410\n",
-       "2020    2010315\n",
-       "2022    2060304\n",
-       "2012    2175217\n",
-       "2003    2234584\n",
-       "2019    2254386\n",
-       "2006    2307352\n",
-       "2017    2321583\n",
-       "2001    2529279\n",
-       "1992    2574578\n",
-       "1993    2703886\n",
-       "2018    2705325\n",
-       "1988    2765617\n",
-       "2007    2780164\n",
-       "1987    2855570\n",
-       "2016    2856393\n",
-       "2011    2857040\n",
-       "2008    2973918\n",
-       "1998    3034904\n",
-       "2002    3125418\n",
-       "2009    3444020\n",
-       "1994    3514763\n",
-       "1996    3539413\n",
-       "2004    3567744\n",
-       "1997    3620066\n",
-       "2015    3654892\n",
-       "2000    3826372\n",
-       "2005    3835025\n",
-       "1999    3908112\n",
-       "2010    4111392\n",
-       "2013    4182691\n",
-       "1986    5115251\n",
-       "1990    5235827\n",
-       "1989    5466192\n",
+       "2020    221186\n",
+       "2021    376290\n",
+       "2002    516689\n",
+       "2018    542312\n",
+       "2017    551041\n",
+       "1996    564901\n",
+       "2019    584066\n",
+       "2015    604382\n",
+       "2000    617597\n",
+       "2001    619041\n",
+       "2012    624573\n",
+       "2005    628464\n",
+       "2006    632833\n",
+       "2022    641397\n",
+       "2011    642368\n",
+       "1993    643387\n",
+       "1995    652478\n",
+       "1994    661409\n",
+       "1998    677775\n",
+       "1997    683434\n",
+       "2014    685769\n",
+       "2013    698332\n",
+       "2007    717352\n",
+       "2008    749478\n",
+       "1999    756456\n",
+       "2003    758363\n",
+       "2004    777388\n",
+       "2016    782114\n",
+       "2010    829911\n",
+       "1992    832939\n",
+       "2009    842373\n",
        "dtype: int64"
       ]
      },
-     "execution_count": 16,
+     "execution_count": 23,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1466,16 +1460,16 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 18,
+   "execution_count": 24,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7fea5d47bb00>"
+       "<matplotlib.axes._subplots.AxesSubplot at 0x7fea5d381f60>"
       ]
      },
-     "execution_count": 18,
+     "execution_count": 24,
      "metadata": {},
      "output_type": "execute_result"
     },