CRS Report Details House Censure
From a Congressional Research Service (CRS) report dated April 16, 2002...
"In the House of Representatives there have been 22 'censures' of Members... While the majority of the censures in the House occurred in the 19th century and concerned issues of decorum, that is, the use of unparliamentary or insulting language on the floor of the House or acts of violence towards other Members, in more recent years instances of financial misconduct have appeared to have been a major issue..."
SOURCE: house.gov - CRS Report: Expulsion, Censure, Reprimand, and Fine... (pdf) (Note: pp. 25-26 of the Appendix details the 22 House censures referenced above, although the most recent of these is July of 1983.)