Thus, in 1998, the Postal Service delivered 1.5 billion more pieces of advertising than non-advertising mail.
The Postal Service has delivered more pieces of advertising in 1998 according to this data
mnli hypothesis: The Postal Service has delivered more pieces of advertising in 1998 according to this data premise: Thus, in 1998, the Postal Service delivered 1.5 billion more pieces of advertising than non-advertising mail.