The second row of the table is devoted to First-Class Mail in HH-to-NHH (Household-to-Non-household) sector.
The second row deals with HH-to-NHH sectors, showing that they are the highest.
mnli hypothesis: The second row deals with HH-to-NHH sectors, showing that they are the highest. premise: The second row of the table is devoted to First-Class Mail in HH-to-NHH (Household-to-Non-household) sector.