diff --git a/apps/exam_mode_configuration_official.cpp b/apps/exam_mode_configuration_official.cpp
index d13b96bc3..20c89b412 100644
--- a/apps/exam_mode_configuration_official.cpp
+++ b/apps/exam_mode_configuration_official.cpp
@@ -6,11 +6,12 @@
 constexpr Shared::SettingsMessageTree ExamModeConfiguration::s_modelExamChildren[2] = {Shared::SettingsMessageTree(I18n::Message::ActivateExamMode), Shared::SettingsMessageTree(I18n::Message::ActivateDutchExamMode)};
 
 int ExamModeConfiguration::numberOfAvailableExamMode() {
-  if (GlobalPreferences::sharedGlobalPreferences()->country() != I18n::Country::NL
+  if (GlobalPreferences::sharedGlobalPreferences()->availableExamModes() == I18n::AvailableExamModes::StandardOnly
       || GlobalPreferences::sharedGlobalPreferences()->isInExamMode())
   {
     return 1;
   }
+  assert(GlobalPreferences::sharedGlobalPreferences()->availableExamModes() == I18n::AvailableExamModes::All);
   return 2;
 }
 
diff --git a/apps/global_preferences.h b/apps/global_preferences.h
index 0001787f8..66996dc46 100644
--- a/apps/global_preferences.h
+++ b/apps/global_preferences.h
@@ -16,6 +16,9 @@ public:
   void setLanguage(I18n::Language language) { m_language = language; }
   I18n::Country country() const { return m_country; }
   void setCountry(I18n::Country country) { m_country = country; }
+  I18n::AvailableExamModes availableExamModes() const { return I18n::CountryPreferencesArray[static_cast<uint8_t>(m_country)].availableExamModes; }
+  I18n::MethodForQuartiles methodForQuartiles() const { return I18n::CountryPreferencesArray[static_cast<uint8_t>(m_country)].methodForQuartiles; }
+  Poincare::Preferences::UnitFormat unitFormat() const { return I18n::CountryPreferencesArray[static_cast<uint8_t>(m_country)].unitFormat; }
   bool isInExamMode() const { return (int8_t)examMode() > 0; }
   ExamMode examMode() const;
   void setExamMode(ExamMode examMode);
diff --git a/apps/i18n.py b/apps/i18n.py
index 6f9dddcc9..a5c8437d9 100644
--- a/apps/i18n.py
+++ b/apps/i18n.py
@@ -120,7 +120,8 @@ def print_header(data, path, locales, countries):
     f.write("#ifndef APPS_I18N_H\n")
     f.write("#define APPS_I18N_H\n\n")
     f.write("// This file is auto-generated by i18n.py\n\n")
-    f.write("#include <escher.h>\n\n")
+    f.write("#include <escher.h>\n")
+    f.write("#include <poincare/preferences.h>\n\n")
     f.write("namespace I18n {\n\n")
     f.write("constexpr static int NumberOfLanguages = %d;\n\n" % len(locales))
     f.write("constexpr static int NumberOfCountries = %d;\n\n" % len(countries))
@@ -171,6 +172,38 @@ def print_header(data, path, locales, countries):
         f.write("  Message::Country" + country.upper() + ",\n")
     f.write("};\n\n")
 
+    # Country preferences
+    f.write("enum class AvailableExamModes : uint8_t {\n")
+    f.write("  None,\n")
+    f.write("  StandardOnly,\n")
+    f.write("  All\n")
+    f.write("};\n\n")
+    f.write("enum class MethodForQuartiles : uint8_t {\n")
+    f.write("  MedianOfSublist,\n")
+    f.write("  CumulatedFrequency\n")
+    f.write("};\n\n")
+    f.write("struct CountryPreferences {\n")
+    f.write("  AvailableExamModes availableExamModes;\n")
+    f.write("  MethodForQuartiles methodForQuartiles;\n")
+    f.write("  Poincare::Preferences::UnitFormat unitFormat;\n")
+    f.write("};\n\n")
+    countryPreferences = {
+            'CA':"CountryPreferences{AvailableExamModes::StandardOnly, MethodForQuartiles::MedianOfSublist, Poincare::Preferences::UnitFormat::Metric}",
+            'DE':"CountryPreferences{AvailableExamModes::StandardOnly, MethodForQuartiles::MedianOfSublist, Poincare::Preferences::UnitFormat::Metric}",
+            'ES':"CountryPreferences{AvailableExamModes::StandardOnly, MethodForQuartiles::MedianOfSublist, Poincare::Preferences::UnitFormat::Metric}",
+            'FR':"CountryPreferences{AvailableExamModes::StandardOnly, MethodForQuartiles::CumulatedFrequency, Poincare::Preferences::UnitFormat::Metric}",
+            'GB':"CountryPreferences{AvailableExamModes::StandardOnly, MethodForQuartiles::MedianOfSublist, Poincare::Preferences::UnitFormat::Metric}",
+            'IT':"CountryPreferences{AvailableExamModes::StandardOnly, MethodForQuartiles::CumulatedFrequency, Poincare::Preferences::UnitFormat::Metric}",
+            'NL':"CountryPreferences{AvailableExamModes::All, MethodForQuartiles::MedianOfSublist, Poincare::Preferences::UnitFormat::Metric}",
+            'PT':"CountryPreferences{AvailableExamModes::StandardOnly, MethodForQuartiles::MedianOfSublist, Poincare::Preferences::UnitFormat::Metric}",
+            'US':"CountryPreferences{AvailableExamModes::StandardOnly, MethodForQuartiles::MedianOfSublist, Poincare::Preferences::UnitFormat::Imperial}",
+            'WW':"CountryPreferences{AvailableExamModes::All, MethodForQuartiles::MedianOfSublist, Poincare::Preferences::UnitFormat::Metric}"}
+    f.write("constexpr static CountryPreferences CountryPreferencesArray[] = {\n")
+    for country in countries:
+        key = country if (country in countryPreferences) else 'WW'
+        f.write("  " + countryPreferences[key] + ",\n")
+    f.write("};\n\n")
+
     f.write("}\n\n")
     f.write("#endif\n")
     f.close()
diff --git a/apps/shared/country_controller.cpp b/apps/shared/country_controller.cpp
index 911be04bc..7678d23ec 100644
--- a/apps/shared/country_controller.cpp
+++ b/apps/shared/country_controller.cpp
@@ -136,11 +136,7 @@ bool CountryController::handleEvent(Ion::Events::Event event) {
     /* FIXME : Changing the unit format should perhaps be done in setCountry.*/
     I18n::Country country = CountryAtIndex(selectedRow());
     GlobalPreferences::sharedGlobalPreferences()->setCountry(country);
-    if (country == I18n::Country::US) {
-      Poincare::Preferences::sharedPreferences()->setUnitFormat(Poincare::Preferences::UnitFormat::Imperial);
-    } else {
-      Poincare::Preferences::sharedPreferences()->setUnitFormat(Poincare::Preferences::UnitFormat::Metric);
-    }
+    Poincare::Preferences::sharedPreferences()->setUnitFormat(GlobalPreferences::sharedGlobalPreferences()->unitFormat());
     return true;
   }
   return false;
diff --git a/apps/statistics/store.cpp b/apps/statistics/store.cpp
index 5c660d36c..6d7465991 100644
--- a/apps/statistics/store.cpp
+++ b/apps/statistics/store.cpp
@@ -1,6 +1,5 @@
 #include "store.h"
 #include <apps/global_preferences.h>
-#include <apps/i18n.h>
 #include <assert.h>
 #include <float.h>
 #include <cmath>
@@ -199,20 +198,18 @@ double Store::sampleStandardDeviation(int series) const {
  * the more general definition if non-integral frequencies are found.
  * */
 double Store::firstQuartile(int series) const {
-  if (GlobalPreferences::sharedGlobalPreferences()->country() == I18n::Country::FR
-   || GlobalPreferences::sharedGlobalPreferences()->country() == I18n::Country::IT
-   || !frequenciesAreInteger(series)) {
+  if (GlobalPreferences::sharedGlobalPreferences()->methodForQuartiles() == I18n::MethodForQuartiles::CumulatedFrequency || !frequenciesAreInteger(series)) {
     return sortedElementAtCumulatedFrequency(series, 1.0/4.0);
   }
+  assert(GlobalPreferences::sharedGlobalPreferences()->methodForQuartiles() == I18n::MethodForQuartiles::MedianOfSublist);
   return sortedElementAtCumulatedPopulation(series, std::floor(sumOfOccurrences(series) / 2.) / 2., true);
 }
 
 double Store::thirdQuartile(int series) const {
-  if (GlobalPreferences::sharedGlobalPreferences()->country() == I18n::Country::FR
-   || GlobalPreferences::sharedGlobalPreferences()->country() == I18n::Country::IT
-   || !frequenciesAreInteger(series)) {
+  if (GlobalPreferences::sharedGlobalPreferences()->methodForQuartiles() == I18n::MethodForQuartiles::CumulatedFrequency || !frequenciesAreInteger(series)) {
     return sortedElementAtCumulatedFrequency(series, 3.0/4.0);
   }
+  assert(GlobalPreferences::sharedGlobalPreferences()->methodForQuartiles() == I18n::MethodForQuartiles::MedianOfSublist);
   return sortedElementAtCumulatedPopulation(series, std::ceil(3./2. * sumOfOccurrences(series)) / 2., true);
 }
 
diff --git a/apps/statistics/test/store.cpp b/apps/statistics/test/store.cpp
index 19feeaeaf..e56645160 100644
--- a/apps/statistics/test/store.cpp
+++ b/apps/statistics/test/store.cpp
@@ -103,7 +103,7 @@ void assert_data_statictics_equal_to(
     GlobalPreferences::sharedGlobalPreferences()->setCountry(country);
     quartileRange = store.quartileRange(seriesIndex);
     quiz_assert(quartileRange >= 0.0);
-    shouldUseFrequencyMethod = country == I18n::Country::FR || country == I18n::Country::IT;
+    shouldUseFrequencyMethod = GlobalPreferences::sharedGlobalPreferences()->methodForQuartiles() == I18n::MethodForQuartiles::CumulatedFrequency;
     assert_value_approximately_equal_to(store.firstQuartile(seriesIndex), shouldUseFrequencyMethod ? trueFirstQuartileFrequencyMethod : trueFirstQuartileSublistMethod, precision, reference);
     assert_value_approximately_equal_to(store.thirdQuartile(seriesIndex), shouldUseFrequencyMethod ? trueThirdQuartileFrequencyMethod : trueThirdQuartileSublistMethod, precision, reference);
     assert_value_approximately_equal_to(quartileRange, shouldUseFrequencyMethod ? trueQuartileRangeFrequencyMethod : trueQuartileRangeSublistMethod, 0.0, 0.0);