In 2008 64% of the harvest was antlerless deer. Based on the following quote it looks like we are still reducing the herd.
Take enough – “Normally a deer herd expands in size by about 30
percent per year through reproduction. If losses are smaller than that
figure, the size of the herd will increase. The annual antlered deer
harvest accounts for only some 12 to 15 percent of the herd, and if the
total population is to remain at a constant level, it is necessary to remove
an additional 12 to 15 percent through antlerless harvests. Elimination
of the antlerless season would produce an explosion in whitetails that
would soon get out of hand.” – Game Commission biologist Dale Sheffer,
Report to PFSC in 6\80 PA Game News