Houston Rockets 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      0      3      5      1      0     52.4     387   351
 1990s:    10      0      5      5      0      0     59.9     472   316
 1980s:    10      0      1      7      1      1     49.0     402   418
 1970s:    10      0      0      7      3      0     45.2     371   449
 1960s:     2      0      0      1      0      1     31.7      52   112
Totals:    41      0      9     25      5      2     50.6    1684  1646

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        0        0        0        0        4        4
 1990s:    10        2        2        3        5        9        9
 1980s:    10        0        2        2        4        8        8
 1970s:    10        0        0        1        2        2        3
 1960s:     2        0        0        0        1        0        1
Totals:    41        2        4        6       12       23       25