CiviCRM lack of Ningxia Autonomous Region in China's provincial-level administrative divisions.

We have checked both the "provinces" in the transifex.com and "civicrm_data.zh_CN.mysql" file,There are not found the Ningxia autonomous regions in its.
About Ningxia autonomous region : http://en.wikipedia.org/wiki/List_of_administrative_divisions_of_Ningxia