Is "Fiscal Cliff" taking mind-share from "BRIC" and "PIIGS"?

Last week I posted a chart comparing “fiscal cliff” on google trends to “green shoots” and “moral hazard.”  Since then, I thought of two other good terms for comparison: “BRIC” and “PIIGS.”  Below is a chart comparing these. Somewhat surprisingly, fiscal cliff has overtaken references to PIIGS and BRIC in news reference volume.