Question on Crop Circles

Looking for information on any crop circles that were reported in US during the years 2005 to 2006, especially in the state of Arkansas. I am doing research into a crop circle in Arkansas and found that there were two before this new report. One in 2003 and another in 2004 but I have been told that crop circle skip years, I find this hard to believe because of other reports that I have read from Europe.