diff --git a/app/jobs/cron/datagouv/file_by_month_job.rb b/app/jobs/cron/datagouv/file_by_month_job.rb
new file mode 100644
index 000000000..723a48af3
--- /dev/null
+++ b/app/jobs/cron/datagouv/file_by_month_job.rb
@@ -0,0 +1,19 @@
+class Cron::Datagouv::FileByMonthJob < Cron::CronJob
+  include DatagouvCronSchedulableConcern
+  self.schedule_expression = "every month at 3:00"
+  FILE_NAME = "nb_dossiers_crees_par_mois"
+
+  def perform(*args)
+    GenerateOpenDataCsvService.save_csv_to_tmp(FILE_NAME, data) do |file|
+      begin
+        APIDatagouv::API.upload(file, :statistics_dataset)
+      ensure
+        FileUtils.rm(file)
+      end
+    end
+  end
+
+  def data
+    Dossier.where(created_at: 1.month.ago.beginning_of_month..1.month.ago.end_of_month).count
+  end
+end