libname orion 'c:\kursus\prg2\data32';

data foo;
	set orion.orders_midyear;
	array m{*} month1--month6;

	do i=1 to dim(m);
		if m{i}=. then m{i} = 0;
		else m{i}=m{i}*1.05;
	end;
	total=sum(of m[*]);
	drop i;
run;