We pulled our Team Transactions Data over the previous 10 Trade Deadline periods to examine the levels of activity in period leading up to the deadline.

The below is an annual average of the number of players acquired by each team (click on any of the below links to see a year-by-year infographic).

Sacramento Kings: 2.7
New York Knicks: 2.3
Houston Rockets: 2.2
Oklahoma City Thunder: 1.8
Cleveland Cavaliers: 1.7
New Orleans Hornets: 1.7
Denver Nuggets: 1.6
Memphis Grizzlies: 1.6
Charlotte Bobcats: 1.6
Atlanta Hawks: 1.5
Brooklyn Nets: 1.5
Milwaukee Bucks: 1.5
Portland Trail Blazers: 1.5
Chicago Bulls: 1.4
Golden State Warriors: 1.3
Boston Celtics: 1.2
Orlando Magic: 1.2
Los Angeles Clippers: 1.1
Phoenix Suns: 1.1
Washington Wizards: 1.1
Dallas Mavericks: 1.0
Minnesota Timberwolves: 1.0
Toronto Raptors: 0.9
Philadelphia 76ers: 0.8
Utah Jazz: 0.7
Indiana Pacers: 0.6
Los Angeles Lakers: 0.6
Miami Heat: 0.6
Detroit Pistons: 0.5
San Antonio Spurs: 0.5

The following are the collective breakdowns by year:
2003: 14
2004: 36
2005: 48
2006: 44
2007: 22
2008: 45
2009: 45
2010: 51
2011: 51
2012: 29