Los Angeles Lakers 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      1      5      3      0      0     63.0     465   273
 1990s:    10      0      6      4      0      0     61.5     485   303
 1980s:    10      0     10      0      0      0     72.1     591   229
 1970s:    10      1      2      6      1      0     59.1     485   335
 1960s:    10      0      5      4      1      0     55.9     447   352
 1950s:    10      0      5      4      1      0     55.1     388   316
 1940s:     1      0      1      0      0      0     73.3      44    16
Totals:    60      2     34     21      3      0     61.4    2905  1824

Per decade, the number of appearances in 
each playoff round:
                                    Yrs in    Yrs in   Yrs in
                  Finals   Yrs in   Conf.     Conf.    Round    Yrs in
          Yrs.     Wins    Finals   Finals    Semis    of 16   Playoffs
 2000s:     9        3        5        5        6        8        8
 1990s:    10        0        1        2        6        9        9
 1980s:    10        5        8        9        9        7       10
 1970s:    10        1        3        5        7        2        8
 1960s:    10        0        6        8        6        0       10
 1950s:    10        4        5        8        8        1        9
 1940s:     1        1        1        1        1        0        1
Totals:    60       14       29       38       43       27       55