@base .
a , ;
"Distribution of high school graduates" .
a .
a , , ;
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"Distribution of high school graduates." ;
;
;
"0098-423X" ;
;
"0098-423X" ;
;
"0098-423X" ;
"Distribution of high school graduates." , "Distribution of high school graduates" ;
.
a ;
"0098-423X" ;
.
.
a ;
"0098-423X" ;
.
a ;
;
"20050916120900.0"^^ ;
;
.
a ;
.
"Massachusetts" .