New York Mets 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     50.7     656   638
 1990s:    10      0      0      9      1      0     49.4     766   786
 1980s:    10      0      3      6      1      0     52.3     816   743
 1970s:    10      0      0      8      2      0     47.3     763   850
 1960s:     8      0      1      2      5      0     38.2     494   799
Totals:    46      0      4     33      9      0     47.8    3495  3816


Playoff appearances per decade:

                   World   Yrs in   League    Div.
                  Series    World   Champ.   Champ.     In
          Yrs.     Wins    Series   Series   Series  Playoffs
 2000s:     8        0        1        2        2        2
 1990s:    10        0        0        1        1        1
 1980s:    10        1        1        2        0        2
 1970s:    10        0        1        1        0        1
 1960s:     8        1        1        1        0        1
Totals:    46        2        4        7        3        7