Tico, the "fangraphs" data indicate there were 41% more home runs in 2000 than in 1993.
Conversely, there were only 5.4% more "contacts in 2000 than 1993.
That means, I guess, there were many more home runs per contact in 2000?? That the increase in the percentage of HR/Contacts appears to be small (1%) is only because of the very large amount of contacts compared to home runs. It's a math trick of the sort employed by politicians daily.
Why complicate things? There were 41% more home runs in 2000 than there were in 1993. That would be the equivalent of batting averages rising from .250 to .350 in seven years.