Chicago Blackhawks 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  Ties
 2000s:     8      0      0      5      3      0     42.3     250   351    55
 1990s:    10      0      2      8      0      0     53.9     369   308   107
 1980s:    10      0      1      9      0      0     49.1     335   350   115
 1970s:    10      0      4      5      1      0     56.7     379   273   136
 1960s:    10      0      2      8      0      0     55.8     334   251   125
 1950s:    10      0      0      2      8      0     35.5     191   394   115
 1940s:    10      0      0      7      3      0     43.9     196   260    68
 1930s:    10      0      0      7      3      0     47.8     186   207    79
 1920s:     3      0      0      1      1      1     30.3      33    85    14
Totals:    81      0      9     52     19      1     48.1    2273  2479   814


Playoff appearances per decade

               Stanley
                 Cup   Yrs in Conf.  Conf.  In
          Yrs.   Wins   Cup   Finals Semis  Playoffs
 2000s:     8      0      0      0      0      1
 1990s:    10      0      1      3      4      8
 1980s:    10      0      0      4      5     10
 1970s:    10      0      2      5      9     10
 1960s:    10      1      3      9      9      9
 1950s:    10      0      0      2      2      2
 1940s:    10      0      1      3      5      5
 1930s:    10      2      3      3      7      7
 1920s:     3      0      0      0      1      1
Totals:    81      3     10     29     42     53