Year	Average per semester		Population		Average year
Year	I	II	I	II	Average year
2006	51.55	45.27	112,170	473,455	48.4
2009	47.02	44.56	151,392	518,132	45.8
2012	48.97	46.35	95,887	575,523	47.7
2015	51.85	44.94	26,275	546,655	48.9
2018	61.67	48.43	12,527	549,936	48.7