Hi:
If your data were called WORK.YRDATA and your variables were actually named:
COUNTY, YEAR, E, P and PCTVAL (since % is an invalid variable name)
then you could generate the desired report with PROC REPORT. (I put an RBREAK statement, but if you don't want report totals, then you can simply delete that statement.
cynthia
[pre]
ods html file='c:\temp\across_examp.html' style=sasweb;
proc report data=yrdata nowd;
column county year,(e p pctval);
define county / group 'County';
define year / across 'Year';
define e / 'E';
define p / 'P';
define pctval / '%' f=3.0;
rbreak after / summarize;
run;
ods html close;
[/pre]