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The Bureau of Labor Statistics (BLS) maintains this website to enhance public access to the Bureau's information. This service is continually under development. We will make every effort to keep this site current and to correct errors brought to our attention.

The BLS website contains links to webpages that are created and maintained by other public and private organizations. Please be aware that BLS does not control or guarantee the accuracy, relevance, timeliness, or completeness of information on other websites. Furthermore, the inclusion of links to webpages or other documents outside of the BLS website is not intended to endorse any views expressed or products or services offered by the organizations operating those websites.

Translations of any materials into languages other than English are intended solely as a convenience to the non-English-reading public. We have attempted to provide an accurate translation of the original material in English, but because of the difficulties of translation, slight differences may exist. References identifying the original document in English are available in most non-English documents.


Last Modified Date: June 4, 2013