Cleveland Browns : win % / playoff appearances 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
 2020s:     4      0      2      2      0      0     55.2      37    30     0
 2010s:    10      0      0      2      5      3     26.6      42   117     1
 2000s:    10      0      1      2      6      1     35.6      57   103     0
 1990s:     7      0      1      2      2      2     36.6      41    71     0
 1980s:    10      0      4      4      2      0     54.9      83    68     1
 1970s:    10      0      3      5      2      0     50.7      72    70     2
 1960s:     4      0      4      0      0      0     68.8      38    17     1
Totals:    55      0     15     17     17      6     43.8     370   476     5


Playoff appearances per decade

                Super  Yrs in
                 Bowl   Super Conf.  Conf.  In
          Yrs.   Wins   Bowl  Finals Semis  Playoffs
 2020s:     4      0      0      0      1      2
 2010s:    10      0      0      0      0      0
 2000s:    10      0      0      0      0      1
 1990s:     7      0      0      0      1      1
 1980s:    10      0      0      3      6      7
 1970s:    10      0      0      0      2      2
 1960s:     4      0      0      2      3      3
Totals:    55      0      0      5     13     16