http://campus.udayton.edu/mary/resources/aprtable.html
Statistical Results
A statistical analysis of the Marian apparition directory reveals the following results. During the twentieth century, there have been 386 cases of Marian apparitions. The Church has made "no decision" about the supernatural character regarding 299 of the 386 cases. The Church has made a "negative decision" about the supernatural character in seventy-nine of the 386 cases. Out of the 386 apparitions, the Church has decided that "yes" there is a supernatural character only in eight cases: Fatima (Portugal), Beauraing (Belgium), Banneux (Belgium), Akita (Japan), Syracuse (Italy), Zeitoun (Egypt), Manila (Philippines) (according to some sources), and Betania (Venezuela). Local bishops have approved of the faith expression at the sites where these eight apparitions occurred. Besides the eight approved apparitions, there have been eleven (out of the 386 apparitions) which have not been approved with a "supernatural character," but which have received a "yes" to indicate the local bishop's "approval of faith expression (prayer and devotion) at the site."