Complex sentence: In 2006 slightly more than half of the Brabantian people identified with Catholism, but only 1-2% of the total population of that area attend the mass, and these churchgoers consist mostly of people over 65 years old.
Split into simpler sentences: In 2006 slightly more than half of the Brabantian people identified with Catholism. Only 1-2% of the total population of the area attend the mass, and these churchgoers consist mostly of people over 65 years old.