What percentage of Catholics go to Church?

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Catholic AnswerI would be tempted to say 100% if only for the reason that to be a Catholic is to faithfully observe the laws of the Church and to be a Catholic means that you must attend Mass every Sunday and holy day. However there are a lot of people who say that they are "Catholic" even if they don't attend Mass each week, I am assuming that is what you are referring to. A little over 75% of the people who CLAIM to be Catholic do not attend weekly Mass.