Seattle Seahawks 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      1      2      4      1      0     57.0      73    55     0
 1990s:    10      0      0      7      2      1     43.8      70    90     0
 1980s:    10      0      3      5      2      0     51.3      78    74     0
 1970s:     4      0      0      2      1      1     41.7      25    35     0
Totals:    32      1      5     18      6      2     49.2     246   254     0


Playoff appearances per decade

                Super  Yrs in
                 Bowl   Super Conf.  Conf.  In
          Yrs.   Wins   Bowl  Finals Semis  Playoffs
 2000s:     8      0      1      2      3      5
 1990s:    10      0      0      0      0      1
 1980s:    10      0      0      1      3      4
 1970s:     4      0      0      0      0      0
Totals:    32      0      1      3      6     10