$\RCP$ for unbiased and leading track biased jets with $60< p_{\rm T,chjet} < 70$ GeV/$c$ as a function of the average number of participants in the collision, $R=0.2$ (top) and $R=0.3$ (bottom). For visibility the data points for all jets and for jets with $\pT^{\rm leading} > 10$ GeV/$c$ are shifted to the left and right, respectively.