Total number of downloads + updates     : 92779
Earliest registration was at            : 27-Sep-2011

Total number of unique installations    : 31501

Breakdown of installations by Psychtoolbox flavor:

'beta'/'current'              : 29679
'unsupported' aka 'stable'    : 682
'trunk'                       : 31
Psychtoolbox-3.0.7            : 0
Psychtoolbox-3.0.8-PreTiger   : 5
Psychtoolbox-3.0.8            : 9
Unclassified                  : 1092

Breakdown by host operating system:

MacOS-X                      :     9191 ( 29.177%) 
Windows                      :    21404 ( 67.947%) 
Linux all                    :      906 (  2.876%) 
Linux 64 Bit Matlab/Octave   :      190 ( 20.971% of all Linux systems) 

For Macintosh - Breakdown by system architecture:

PowerMac                     : 1437 ( 15.635% of all Apple systems) 
IntelMac                     : 7689
IntelMac (Intel Matlab)      : 7397
IntelMac (Matlab on Rosetta) : 14
Unknown                      : 65

For Macintosh - Breakdown by OS/X version:

10.3 - Panther               : 156
10.4 - Tiger                 : 1885
10.5 - Leopard               : 3088
10.6 - Snow Leopard          : 3299
10.7 - Lion                  : 762

For MS-Windows - Breakdown by Windows version:

Windows additional preVistas : 1147
Windows 2000                 : 117
Windows XP                   : 12717
Windows Vista                : 2317
Windows 7                    : 5106

For MS-Windows - Breakdown by Matlab release:

Matlab R2007a (V7.4) or later: 16158
Previous Matlab releases     : 5148

Breakdown for all systems by Matlab major versions:

Matlab 5.x                   : 1
Matlab 6.x                   : 532
Matlab 7.x                   : 30391
Matlab 7.0   (R2005a)        : 2116
Matlab 7.1   (R2005b)        : 1328
Matlab 7.2   (R2006a)        : 873
Matlab 7.3   (R2006b)        : 1147
Matlab 7.4   (R2007a)        : 3130
Matlab 7.5   (R2007b)        : 3780
Matlab 7.6   (R2008a)        : 2529
Matlab 7.7   (R2008b)        : 1920
Matlab 7.8   (R2009a)        : 2754
Matlab 7.9   (R2009b)        : 2754
Matlab 7.10  (R2010a)        : 4365
Matlab 7.11  (R2010b)        : 1409
Matlab 7.12  (R2011a)        : 1107
Matlab 7.13  (R2011b)        : 909
Matlab 7.14  (R2012a)        : 270

Number of GNU/Octave V3+ installations by system:

Octave on OS/X               : 278
Octave on Linux              : 201
Octave on Windows            : 98