$ ./build_stats.py 
 * CSV loaded → we now have 44298 rows
 * * duplicated headers are removed → we now have 43899 rows
 * * duplicated po files are removed → we now have 43588 rows
 * Deduplication is done → we now have 43588 rows
 * * remove pot files → we now have 43381 rows
 * * remove gmo files → we now have 39208 rows
 * * remove files with 'totalMessage'=0 → we now have 39148 rows
 * Removal is done → we now have 39148 rows
 * * remove if lang endswith encoding values → we now have 39132 rows
 * * remove if lang contains a point → we now have 39007 rows
 * bcp47 data are guessed → we now have 39007 rows
 * * remove if len(region)>2 → we now have 38881 rows
 * * remove if len(language)>3 → we now have 26288 rows
 * * remove if language.isdigit() → we now have 23984 rows
 * bcp47 data are cleaned → we now have 23984 rows
 * cldr data are added → we now have 23984 rows
 * * remove languages non existing in CLDR → we now have 23087 rows
 * cldr data are cleaned → we now have 23087 rows