<prompt> Translate the following text to EnglishTangu mwaka wa 1987 hadi 1994, sehemu ya mapato ya posta ya USP kutoka kwa kaya za Marekani ilipungua kutoka chini ya asilimia 20 hadi zaidi ya asilimia 10.  <response>: From 1987 to 1994 share of USPS mail revenues from US household fell From a little less than 20 percent to a little more than 10 percent 