[ncc-dubai03] IPv4 Current status

Hi all,
in a presentation by axel pawlik ( page 3 ) there is
some statistics regarding above subject. in a presentation
by Paul Wilson (page 10) there is statistics which are not
identical to previous one.I thought one of them is out of
date but there is also some differences in IETF reserved
address space. does anybody know which one is exact?
Best Regards
Hamid Alipour