There are a good many stats in this article ...

"Survey assesses Catholics' beliefs, practices on Mass, sacraments" - Catholic News Service, 4/11/08:

The study divided respondents into four generations in relation to the Second Vatican Council: pre-Vatican II, comprised of those born before 1943; Vatican II, born between 1943 and 1960; post-Vatican II, born 1961 to 1981; and millennial Catholics, born after 1981.

While those of the first three generations chose the Eucharist as their most meaningful sacrament, 43 percent of the millennial Catholics said marriage was the sacrament most meaningful to them.¹

Only 2 percent of Catholics across all generations said they participated in the sacrament of reconciliation once a month or more, 12 percent said they did several times a year, 12 percent said they did once a year, 30 percent said less than once a year and 45 percent said they never made a sacramental confession.

Knowledge about the Catholic faith generally was higher among the older generations than the younger ones, but the survey found that knowledge of the Bible was higher among younger Catholics² than their older counterparts.

Slightly less than one quarter (23 percent) usually carried a rosary, while 20 percent said they typically had prayer cards or religious coins with them and 9 percent said they carried a scapular.

What are "religious coins?" Aren't they Protestant?⁴

I've been following these trends since Bernadin's undertaking.³

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¹ Surprisingly different, wouldn't you say?
²Some knowledge is always higher than no knowledge.
³ and reading Davidson's book.
⁴ A previous post on communion tokens.