select
    useragent.browser_family, 
    useragent.browser_major, 
    useragent.os_family,
    useragent.os_major, 
    count(1) as cnt 
from event.testsearchsatisfaction2 
where year = 2018 and month = 9 
group by useragent.browser_family, useragent.browser_major, useragent.os_family, useragent.os_major
order by cnt desc 
limit 50;

===============

Chrome  68      Windows 10      1415357
Chrome  68      Windows 7       892241
Edge    17      Windows 10      261962
Firefox 61      Windows 10      178133
IE      11      Windows 10      171065
Chrome  68      Windows 8.1     168339
Safari  11      Mac OS X        10      165047
Firefox 61      Windows 7       139304
Chrome  68      Mac OS X        10      135963
IE      11      Windows 7       115091
Firefox 62      Windows 10      103715
Chrome  69      Windows 10      91235
Firefox 62      Windows 7       81268
Chrome  49      Windows XP      70785
Chrome  69      Windows 7       63246
Chrome  68      Chrome OS       10718   47807
Opera   55      Windows 10      45670
Opera   55      Windows 7       41539
Edge    16      Windows 10      35432
Firefox 52      Windows XP      30229
Coc Coc 72      Windows 7       28689
Chrome  68      Windows 8       25585
Chrome  67      Windows 7       25551
Firefox 61      Ubuntu  NULL    25187
Firefox 61      Windows 8.1     24601
Firefox 61      Mac OS X        10      23046
Safari  10      Mac OS X        10      20975
Chrome  67      Mac OS X        10      19278
Chrome  67      Windows 10      18722
Yandex Browser  18      Windows 7       18462
Chrome  67      Chrome OS       10575   18150
Chrome  63      Windows 10      16094
Chrome  49      Windows Vista   15911
IE      11      Windows 8.1     15783
Coc Coc 72      Windows 10      15666
Edge    14      Windows 10      14745
Firefox 62      Windows 8.1     14031
Edge    15      Windows 10      13154
Chrome  63      Windows 7       12510
Yandex Browser  18      Windows 10      12397
Chrome  69      Windows 8.1     12017
Chrome  65      Windows 10      11492
Safari  9       Mac OS X        10      10535
Opera   55      Windows 8.1     10429
Chrome  66      Windows 7       10098
Firefox 52      Windows 7       10058
Mobile Safari   11      iOS     11      9217
Chrome  68      Linux   NULL    8926
Chrome  66      Windows 10      8880
Edge    18      Windows 10      8805