The WWE Elimination Chamber PPV on 2/17/13 featuring The Rock vs. CM Punk headling for the WWE Championship drew an estimated 212,000 buys according to WWE. This breaks down to 160,000 domestic and 52,000 international. This estimate would already put it above the 178,000 buys the show drew in 2012.
Source: WWE Key Performance Indicators, The Wrestling Observer/Figure Four Online