Here is the data that everyone was waiting for. It was apparently just added via a link in the 2011 Compliance Report.
http://travel.state.gov/abduction/resources/resources_3860.html
Better late, missing lots of info and poorly organized than never.
This is only some of the data.
There is no information on the number of returns (the disingenuous way State counts "Hague returns" notwithstanding.)
There is no separation of Hague and non-Hague countries.
They have separated out "access cases" from abduction cases. One wonders what exactly their criteria for doing so is, but I tend to think it was just, yet another, creative way to make the abduction numbers look smaller.
And of course, what they never include, what percent of abductions involved the mother and what percent of returns involved an abducting father. What percent of returns were voluntary or involved extradition and what percent actually made use of the Hague Convention in Convention countries.