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We have simulated the central collisions of $^{20}Ne+^{20}Ne$, $^{40}Ar+^{45}Sc$, $^{58}Ni+^{58}Ni$, $^{86}Kr+^{93}Nb$, $^{129}Xe+^{124}Sn$, and $^{197}Au+^{197}Au$. Peak IMF multiplicity is observed to follow power law of form: $c A^{\\tau}_{tot}$, with exponent $\\tau$ close to unity. 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