I just go across the rupnet.com, for all July 2001 filers,
There are 26 applicants did their FP after 3/01/2002.
Among all of them, only 2 got approval, 3 got RFE.
5 / 26 = 19%
while for all Julys, approval = 197, RFE = 16, total = 213
213 / 326 = 65%
There is big difference.