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Registered Psychtoolbox-3 installations as of May 15 2015 22:56:35.

    Total number of downloads + updates     : 170885

    Total number of unique installations    : 61141

    Breakdown of installations by Psychtoolbox flavor:

    'beta'/'current'              : 56941
    'unsupported' aka 'stable'    : 683
    'trunk'                       : 39
    Psychtoolbox-3.0.7            : 0
    Psychtoolbox-3.0.8-PreTiger   : 5
    Psychtoolbox-3.0.8            : 28
    Psychtoolbox-3.0.9            : 19
    Psychtoolbox-3.0.10           : 101
    Psychtoolbox-3.0.11-PreWinGst : 2
    Psychtoolbox-3.0.11           : 972
    Unclassified                  : 2344

    Breakdown by host operating system:

    MacOS-X all                  :    18303 ( 29.936%)
    Windows all                  :    40904 ( 66.901%)
    Linux all                    :     1934 (  3.163%)
    Linux on ARM embedded/mobile :        3
    Linux   64 Bit Matlab/Octave :     1046 ( 54.085% of all Linux systems)
    Windows 64 Bit Matlab/Octave :    11914 ( 29.127% of all Windows systems)
    MacOS-X 64 Bit Matlab/Octave :     9385 ( 51.276% of all MacOS-X systems)

    For Macintosh - Breakdown by system architecture:

    PowerMac                     : 1446 (  7.900% of all Apple systems)
    IntelMac                     : 16857

    For Macintosh - Breakdown by OS/X version:

    10.3  - Panther               : 156
    10.4  - Tiger                 : 1867
    10.5  - Leopard               : 3039
    10.6  - Snow Leopard          : 4129
    10.7  - Lion                  : 2084
    10.8  - Mountain Lion         : 2429
    10.9  - Mavericks             : 2990
    10.10 - Yosemite              : 1594
    10.11 - El Capitan            : 0

    For MS-Windows - Breakdown by Windows version:

    Windows additional preVistas : 1117
    Windows 2000                 : 145
    Windows XP                   : 14202
    Windows Vista                : 2649
    Windows 7                    : 19974
    Windows 8                    : 2650
    Windows 8.1                  : 166
    Windows 10                   : 0

    For MS-Windows - Breakdown by Matlab release:

    Matlab R2007a (V7.4) or later: 35536
    Previous Matlab releases     : 5205

    Breakdown for all systems by Matlab major versions:

    Matlab 5.x                   : 1
    Matlab 6.x                   : 529
    Matlab 7.x                   : 41804
    Matlab 7.0   (R2005a)        : 2182
    Matlab 7.1   (R2005b)        : 1326
    Matlab 7.2   (R2006a)        : 878
    Matlab 7.3   (R2006b)        : 1138
    Matlab 7.4   (R2007a)        : 3118
    Matlab 7.5   (R2007b)        : 4197
    Matlab 7.6   (R2008a)        : 2760
    Matlab 7.7   (R2008b)        : 2119
    Matlab 7.8   (R2009a)        : 3171
    Matlab 7.9   (R2009b)        : 3331
    Matlab 7.10  (R2010a)        : 5963
    Matlab 7.11  (R2010b)        : 2343
    Matlab 7.12  (R2011a)        : 2631
    Matlab 7.13  (R2011b)        : 2410
    Matlab 7.14  (R2012a)        : 4237
    Matlab 8.0   (R2012b)        : 3704
    Matlab 8.1   (R2013a)        : 4804
    Matlab 8.2   (R2013b)        : 2555
    Matlab 8.3   (R2014a)        : 3793
    Matlab 8.4   (R2014b)        : 2430
    Matlab 8.5   (R2015a)        : 534
    Matlab 8.6   (R2015b)        : 0

    Number of GNU/Octave V3+ installations by system:

    Octave on OS/X               :      473 (  2.584% of all OS/X installs)
    Octave on Linux              :      351 ( 18.149% of all Linux installs)
    Octave on Windows            :      163 (  0.398% of all Windows installs)

    Parsed lines in registration log        : 173071
    Invalid (skipped) log entries           : 6