So far this term, the Supreme Court handed down eight cases where the United States Chamber of Commerce filed a brief – and a majority of the justices sided with the Chamber in all but one of these decisions. The one outlier decision was a case involving anti-retaliation protections for whistleblowers where the justices votes broke down along unusual lines, with Justice Ruth Bader Ginsburg writing the majority opinion and Justice Sonia Sotomayor in dissent.

This most recent data is part of an ongoing project by the Constitutional Accountability Center, which scored the Chamber’s ‘win rate” before the justices going back to 1981. As their data reflects, corporate America got a big boost in the nation’s highest Court shortly after Chief Justice John Roberts (and his conservative colleague Justice Samuel Alito) became justices:

CAC SCOTUS data

Several Chamber cases remain to be decided this term, including two major environmental cases and an attack on President Obama’s recess appointments power.

CAC’s data also shows a sharp divide between the Court’s conservative bloc and its four more liberal members: