Toronto Blue Jays 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:     9      0      0      9      0      0     50.1     730   727
 1990s:    10      0      0      9      1      0     51.5     801   754
 1980s:    10      0      1      8      1      0     52.3     817   746
 1970s:     3      0      0      0      3      0     34.3     166   318
Totals:    32      0      1     26      5      0     49.7    2514  2545


Playoff appearances per decade:

                   World   Yrs in   League    Div.
                  Series    World   Champ.   Champ.     In
          Yrs.     Wins    Series   Series   Series  Playoffs
 2000s:     9        0        0        0        0        0
 1990s:    10        2        2        3        0        3
 1980s:    10        0        0        2        0        2
 1970s:     3        0        0        0        0        0
Totals:    32        2        2        5        0        5