League Leaders Who Led?

2012 NFC Interceptions Thrown by Team

Every team's total, added up from its players' lines. Passes intercepted

The Arizona Cardinals led the NFC in interceptions thrown in 2012, with 21, 2 ahead of the Dallas Cowboys. The average across 16 NFC teams is 14.1.

Led the NFC in 2012 Arizona Cardinals 16 games
21 Interceptions Thrown 2 clear of Dallas Cowboys

A team's total is its players' numbers for the club added up, so a player traded mid-season counts for each team only what he did there. Rates such as passer rating and yards per attempt are worked out from the team's summed totals, not averaged across players. Passing yards are gross, before sack yardage comes off; the league's official team figures are net, so they run a little lower.