apt: 33.8%

synaptic: 17.3%

yum: 12.9%

pacman: 10.8%

aptitude: 9.2%

portage: 3.9%

YaST: 3.4%

Software Center: 2%

Zypper: 1.8%

Other: 1.7%

pkgtool: 1.7%

PiSi (Pardus): .6%

Smart Package Manager: .6%

InstallAnywhere: .2%