I can't say for sure, but I know my school has similar breakdowns:
Top 10%: 3.548
Top 25%: 3.385
Top 33%: 3.185
Top 50%: 3.129
Top 75%: 2.937
and last year the top 7% (who graded on to law review) was around 3.5, so there is some degree of grade inflation, but only some.