In the past 10 years, the number of criminal cases in area A has increased by 200%, but the number of criminal cases in area B has increased by 500%. Therefore, the current number of criminal cases in area B is higher than that in area A.
Ten years ago, the number of criminal cases in area A accounted for 90% of the cases in area A and area B, and area B only accounted for 2% can weaken the above proposition most.