`Ͻ 1""2"2""2"22"">SAS FILEDATATAB_1_20 DATA vCA vCA 9.0201M0W32_VSHOME v@L@L@LYu vCAXuU   0  , 8| ,H 4 4 4 `\@.@20 or lessa A`@20-24 . PAj@25-29 A@h@30-34 @r@35-39 0@"@n@40-44 @B@45 or over N'..+  M6'  N M@:^?!m3^ -d HD4  ,  $L| > DATASTEPage_group__yearsage group, years$$total_number_of_birthstotal number of birthsnumber_of_mothers_of_down_s_syndnumber of mothers of down's syndrome patients  0" FQXu    -\