Cleveland Indians 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      0      8      0      0     51.7     670   626
 1990s:    10      0      2      7      1      0     52.9     817   728
 1980s:    10      0      0      8      2      0     45.5     710   849
 1970s:    10      0      0      9      1      0     46.0     737   866
 1960s:    10      0      0      9      1      0     48.7     783   826
 1950s:    10      0      4      6      0      0     58.8     904   634
 1940s:    10      0      1      9      0      0     52.3     800   731
 1930s:    10      0      0     10      0      0     53.8     824   708
 1920s:    10      0      2      8      0      0     51.2     786   749
 1910s:    10      0      1      7      2      0     49.8     742   747
 1900s:     7      0      0      7      0      0     54.3     574   483
Totals:   105      0     10     88      7      0     51.2    8347  7947


Playoff appearances per decade:

                   World   Yrs in   League    Div.
                  Series    World   Champ.   Champ.     In
          Yrs.     Wins    Series   Series   Series  Playoffs
 2000s:     8        0        0        1        2        2
 1990s:    10        0        2        3        5        5
 1980s:    10        0        0        0        0        0
 1970s:    10        0        0        0        0        0
 1960s:    10        0        0        0        0        0
 1950s:    10        0        1        0        0        1
 1940s:    10        1        1        0        0        1
 1930s:    10        0        0        0        0        0
 1920s:    10        1        1        0        0        1
 1910s:    10        0        0        0        0        0
 1900s:     7        0        0        0        0        0
Totals:   105        2        5        4        7       10