SQL & PL/SQL :: Package Returning Multiple Strings

I have a function in PL/SQL that uses CTE to obtain several strings. I need to return those strings to C#, either as a Return Value or a OUTPUT parameter.

I've managed to do that using PLSQL Associative Array, but it has the unnecessary usage of Array Bind Size, and I do not need to know what will be my Array size. Is that any other way to do it?

My Package is the next one:

create or replace
PACKAGE Pkg1 IS
TYPE listResults is TABLE of VARCHAR2(100) INDEX BY BINARY_INTEGER;
PROCEDURE CalculateResults ( iCode IN VARCHAR2, iAg IN VARCHAR2, resultados OUT listaResultados );
END Pkg1;

create or replace
PACKAGE BODY Pkg1 AS
PROCEDURE CalculateResults(
iCode IN VARCHAR2,
[code]......