Revenue from duties jumped to $22 billion in May, and customs officials are stepping up enforcement to collect it.

Motio Research is now providing monthly U.S. household ... The following chart presents Motio Research's nominal household income estimates for the U.S. income distribution's quartile thresholds ...

Valve has refreshed the monthly charts to include 50 games, sorted by revenue. All sales charts across Steam are based on game revenue, which is why free-to-play games often occupy the top spots.