<prompt> Translate the following text to Swahili6 percent in 1997.NHH-to-NHH business mail is the only sector of First-Class Mail that has experienced healthy growth in the 90s.  <response>: Katika miaka ya 1990, barua za biashara za biashara NHH zilikuwa na kiwango cha juu cha upatikanaji wa barua za kwanza. 