WASHINGTON (AP) — The U.S. economy grew at an annual rate of 4.3% in the final three months of 2020, slightly faster than previously estimated, as recovery expectations for 2021 rise along with vaccinations and the provision of another nearly $2 trillion in government support. GDP in the October-December quarter rose from an estimate last month of a 4.1% rate, the Commerce Department reported Thursday. The upward revision reflected stronger inventory restocking by businesses. For the whole year, the GDP shrank by 3.5%, the largest annual decline since a plunge of 11.6% in 1946 when the U.S. demobilized after World War II. The 3.5% drop was unchanged from the previous report.