San Diego Chargers : 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
 2010s:     7      0      0      5      2      0     45.5      51    61     0
 2000s:    10      2      2      3      2      1     53.1      85    75     0
 1990s:    10      0      2      4      4      0     46.3      74    86     0
 1980s:    10      0      3      3      4      0     47.4      72    80     0
 1970s:    10      0      1      5      2      2     42.0      58    81     5
 1960s:     4      0      2      2      0      0     58.9      32    22     2
Totals:    51      2     10     22     14      3     47.9     372   405     7


Playoff appearances per decade

                Super  Yrs in
                 Bowl   Super Conf.  Conf.  In
          Yrs.   Wins   Bowl  Finals Semis  Playoffs
 2010s:     7      0      0      0      1      1
 2000s:    10      0      0      1      4      5
 1990s:    10      0      1      1      2      3
 1980s:    10      0      0      2      3      3
 1970s:    10      0      0      0      1      1
 1960s:     4      0      0      0      0      0
Totals:    51      0      1      4     11     13