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1.
(ECONOMICS) seasonally adjusted annualized rate.

Economic statistics are often reported as rates of change from month to month, or quarter to quarter. However, some months, such as November and December, have very high retail sales, while May through September have very high home sales. For this reason, data is sometimes "seasonally adjusted" to offset ordinary seasonal variations.

The US Federal Reserve System reports changes in GDP from quarter to quarter in annualized form; so, for example, during the last quarter of 2004, US GDP was (about) $3,044.6 billion. But it was reported as an annualized (and seasonally adjusted) $11734.9. If you divide that by 4 you get 2957.8, which reflects the fact that the Fed shaved 86.8 billion off its estimate of economic activity for 2004Q4 and reallocated it to Q1 & Q2.

The reason the Fed (and everyone else) does this is to measure economic change separately from the usual seasonal change in business activity.
In Brazil, household spending continued to ease to 0.8% quarter-to-quarter (3.1% SAAR) from 1.4% q/q (5.6% SAAR) in Q1 2010, and investment lost momentum, increasing 2.4% q/q (9.8% SAAR) compared with 7.3% q/q (32.4% SAAR) in Q1.

{Nouriel Robuini, "RGE's Wednesday Note - Brazil's Economy Exhales" (10 Sep 2010)}
by Abu Yahya September 08, 2010