No, most of the US economy is service and office based. <a href="http:&#x2F;&#x2F;www.bls.gov&#x2F;news.release&#x2F;pdf&#x2F;ocwage.pdf" rel="nofollow">http:&#x2F;&#x2F;www.bls.gov&#x2F;news.release&#x2F;pdf&#x2F;ocwage.pdf</a> (see chart 3)