Table 7.  Ncontinued  
  
                                                 (Standard error as percentage of total) 
       __________________________________________________________________________________________________________________________ 
                                                      Diameter class (inches at breast height)                                         
          Species group      __________________________________________________________________________________________    All          
                                 5.0-     7.0-     9.0-    11.0-    13.0-    15.0-    17.0-    19.0-    21.0-            classes       
                                  6.9      8.9     10.9     12.9     14.9     16.9     18.9     20.9     28.9     29.0+                
       __________________________________________________________________________________________________________________________ 
       Other white oaks           23.1     25.2     18.0     22.1     22.8     35.9     36.2     49.8     72.7       .0     16.1  
       Other red oaks             22.3     25.5     21.9     24.4     23.6     31.2     29.2    100.0     39.2     70.7     16.1  
       American basswood          20.4     18.9     19.4     16.3     25.1     23.7     26.2     36.3     38.6       .0     13.0  
       Elm                        11.0     13.7     17.5     26.7     32.9     51.0     57.9       .0    100.0       .0     11.4  
       Other hardwoods            11.3     11.4     10.9     14.0     14.5     20.9     23.6     39.2     33.7     84.1     10.7  
                             ____________________________________________________________________________________________________ 
         Total hardwoods           3.3      3.3      3.5      3.9      4.3      5.2      6.4      9.1     10.1     33.6      3.0  
                             ____________________________________________________________________________________________________ 
       Total, all species          3.2      3.1      3.5      3.6      3.9      4.7      5.6      8.0      8.4     23.5      2.8  
       __________________________________________________________________________________________________________________________