I agree on the above analysis, that the cic updates correspond to each working day. But I guess that updates started from 8th May. i.e.
Cap update Total Corresponding
by CIC filled working date
1st update (20-06-2013) 26 Wednesday, May 08, 2013
2nd update(24-06-2013) 65 Thursday, May 09, 2013
3rd update (16-7-2013) 163 Friday, May 10, 2013
4th update (29-07-2013) 389 Monday, May 11, 2013
These might be the complete applications which are transferred to VO. I may be wrong ... lets keep our fingers crossed.