In FY 1997 and FY 1998, Standard A mail grew 7.8 percent and 7.3 percent respectively.
In FY 1997 Standard A mail grew by 100 percent. 
mnli hypothesis: In FY 1997 Standard A mail grew by 100 percent.  premise: In FY 1997 and FY 1998, Standard A mail grew 7.8 percent and 7.3 percent respectively.