We analyse parameters of the average phase curves of the effective magnetic field $B_{\rm e}$ for 139 Main Sequence and other stars. 134 are chemically peculiar A and B type stars. This contribution presents the statistical properties of the fitting coefficients $B_{\rm 0}$, $B_{\rm 1}$, and $B_{\rm 2}$, and the distribution of the parameter $r= B_{\rm e}({\rm max})/B_{\rm e}({\rm min})$.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html