Why don't you share a link to those statistics for all the folks to see? And by the way, discovery usually begins very soon after a complaint is filed; in fact, in many cases the first discovery requests are served on the defendants along with service of the summons and complaint. "Litigation" is the entire process from filing a complaint through trial. Perhaps you meant to say trial rather than litigation.
LITIGATION - A case, controversy, or lawsuit. A contest authorized by law, in a court of justice, for the purpose of enforcing a right. Participants (plaintiffs and defendants) in lawsuits are called litigants.