CREATE OR REPLACE
FUNCTION anual(monthh in varchar2, an IN VARCHAR2)
return anual_REP_var PIPELINED is

BR anual_REP:=anual_REP(NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
                            NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL, NULL,NULL);
contor INT(2); 
an_in VARCHAR2(4);
luna_in varchar2(2);

Begin
contor  := to_number(trim(monthh));  --the number of iterations 
an_in   := trim(an); --
For tmp in 1..contor
loop
  br:=anual_monthh('28-'||tmp||'-'||an_in); --function that returns the situation for one month
	--(must run it 12 times with different parameter) - i need to get cumulated situation
	--error trown  
	--PLS-00653: aggregate/table functions are not allowed in PL/SQL scope
  pipe ROW(BR);
END loop;
return;
END anual;