diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3e04700..b933bca3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,16 @@
 # Changelog
 
-## 0.12.0 [173](https://github.com/openfisca/openfisca-france-data/pull/173
+## 0.13.0 [177](https://github.com/openfisca/openfisca-france-data/pull/177)
+
+- Introduce a file export that contains only one flattened table (`dummy_data.h5`) instead of exporting a file with several tables.
+  - Adds `export_flattened_df` argument in `create_input_data_frame function`.
+- Bump `numexpr` top version.
+
+## 0.12.0 [173](https://github.com/openfisca/openfisca-france-data/pull/173)
 
 - Get some cleaner stuff from IPP modifs from CASD.
 
-### 0.11.1 [172](https://github.com/openfisca/openfisca-france-data/pull/172
+### 0.11.1 [172](https://github.com/openfisca/openfisca-france-data/pull/172)
 
 - Fix numpy dependency to deal with openfisca-survey-manager deps (see https://github.com/openfisca/openfisca-survey-manager/pull/79).
 
diff --git a/openfisca_france_data/erfs_fpr/input_data_builder/__init__.py b/openfisca_france_data/erfs_fpr/input_data_builder/__init__.py
index 71baaacb..bd068b65 100644
--- a/openfisca_france_data/erfs_fpr/input_data_builder/__init__.py
+++ b/openfisca_france_data/erfs_fpr/input_data_builder/__init__.py
@@ -18,7 +18,7 @@
 
 
 #@dispatch(int)
-def build(year: int) -> None:
+def build(year: int, export_flattened_df_filepath: str = None) -> None:
     """
     Ici on va nettoyer et formatter les donnés ERFS-FPR, pour les rendre OpenFisca-like
     """
@@ -54,7 +54,7 @@ def build(year: int) -> None:
     #
     # On crée une df par entité par période.
     # Elles sont stockées dans un fichier h5
-    final.create_input_data_frame(year = year)
+    final.create_input_data_frame(year = year, export_flattened_df_filepath = export_flattened_df_filepath)
 
 
 if __name__ == '__main__':
@@ -62,8 +62,11 @@ def build(year: int) -> None:
     import time
     start = time.time()
     logging.basicConfig(level = logging.INFO, stream = sys.stdout)
+
     year = 2014
-    build(year = year)
+    export_flattened_df_filepath = "./dummy_data.h5"  # Could be disabled with None
+    build(year = year, export_flattened_df_filepath = export_flattened_df_filepath)
     # TODO: create_enfants_a_naitre(year = year)
+
     log.info("Script finished after {}".format(time.time() - start))
     print(time.time() - start)
diff --git a/openfisca_france_data/erfs_fpr/input_data_builder/step_05_final.py b/openfisca_france_data/erfs_fpr/input_data_builder/step_05_final.py
index 63a622ee..73f06133 100644
--- a/openfisca_france_data/erfs_fpr/input_data_builder/step_05_final.py
+++ b/openfisca_france_data/erfs_fpr/input_data_builder/step_05_final.py
@@ -15,7 +15,7 @@
 
 
 @temporary_store_decorator(file_name = 'erfs_fpr')
-def create_input_data_frame(temporary_store = None, year = None):
+def create_input_data_frame(temporary_store = None, year = None, export_flattened_df_filepath = None):
     assert temporary_store is not None
     assert year is not None
 
@@ -95,7 +95,14 @@ def create_input_data_frame(temporary_store = None, year = None):
         )
 
     individus = format_ids_and_roles(individus)
-
+    if export_flattened_df_filepath:
+        supermerge = individus.merge(
+            menages,
+            right_index = True,
+            left_on = "idmen",
+            suffixes = ("", "_x"))
+        supermerge.to_hdf(export_flattened_df_filepath, key = "input")
+    # Enters the individual table into the openfisca_erfs_fpr collection
     set_table_in_survey(
         individus,
         entity = "individu",
@@ -104,6 +111,7 @@ def create_input_data_frame(temporary_store = None, year = None):
         survey_name = 'input',
         )
 
+
     # assert 'f4ba' in data_frame.columns
 
 
@@ -206,7 +214,7 @@ def extract_menages_variables(menages):
     logging.basicConfig(level = logging.INFO, stream = sys.stdout)
     year = 2014
     data_frame = create_input_data_frame(year = year)
-    print('ok')
+    log.info('Ok')
 
 # TODO
 # Variables revenus collectifs
diff --git a/setup.py b/setup.py
index 8eecb73a..0e6fb681 100755
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
 
 setup(
     name = "OpenFisca-France-Data",
-    version = "0.12.0",
+    version = "0.13.0",
     description = "OpenFisca-France module to work with French survey data",
     long_description = long_description,
     author = "OpenFisca Team",
@@ -33,8 +33,8 @@
         "openfisca-core >= 34.2.2, < 35.0.0",
         "openFisca-france >= 42.1.0, < 43.0.0",
         "openFisca-survey-manager >= 0.24, < 1.0.0",
-        "numpy >= 1.11,<1.16",  # openfisca-survey-manager deps and https://github.com/openfisca/openfisca-survey-manager/pull/79
-        "numexpr == 2.6.8",
+        "numpy >= 1.11, < 1.16",  # openfisca-survey-manager deps and https://github.com/openfisca/openfisca-survey-manager/pull/79
+        "numexpr >= 2.6.8, < 2.8.0",
         "pandas >= 0.20.3, < 1.0.0",
         "tables >= 3.0.0, < 4.0.0",  # Needed by pandas.HDFStore
         "wquantiles >= 0.3.0, < 1.0.0"  # To compute weighted quantiles