Chicago White Sox win percentages per decade: The number of seasons
with win % in the following ranges:
                                                    Decade
          Yrs.    80%+ 60-79% 40-59% 20-39% 0-19%    Ave.    Wins Losses
 2000s:     8      0      1      7      0      0     53.2     689   607
 1990s:    10      0      0     10      0      0     52.6     816   735
 1980s:    10      0      1      9      0      0     48.6     758   802
 1970s:    10      0      0      8      2      0     46.9     752   853
 1960s:    10      0      1      9      0      0     52.9     852   760
 1950s:    10      0      2      7      1      0     55.0     847   693
 1940s:    10      0      0      9      1      0     46.3     707   820
 1930s:    10      0      0      7      3      0     44.6     678   841
 1920s:    10      0      1      8      1      0     47.6     731   804
 1910s:    10      0      3      7      0      0     53.6     798   692
 1900s:     7      0      2      5      0      0     56.0     587   462
Totals:   105      0     11     86      8      0     50.4    8215  8069


Playoff appearances per decade:

                   World   Yrs in   League    Div.
                  Series    World   Champ.   Champ.     In
          Yrs.     Wins    Series   Series   Series  Playoffs
 2000s:     8        1        1        1        2        2
 1990s:    10        0        0        1        0        1
 1980s:    10        0        0        1        0        1
 1970s:    10        0        0        0        0        0
 1960s:    10        0        0        0        0        0
 1950s:    10        0        1        0        0        1
 1940s:    10        0        0        0        0        0
 1930s:    10        0        0        0        0        0
 1920s:    10        0        0        0        0        0
 1910s:    10        1        2        0        0        2
 1900s:     7        1        1        0        0        1
Totals:   105        3        5        3        2        8