Note that national accounting growth rate reporting conventions are local. In the US, official GDP comes from bea.gov, which annualizes the quarter-on-quarter

Note that national accounting growth rate reporting conventions are local. In the US, official GDP comes from bea.gov, which annualizes the quarter-on-quarter growth by default. In the UK it's done by ons.gov.uk, which reports (seasonal-adjusted) quarter-on-quarter without annualizing. In China, www.stats.gov.cn used to report quarter-on-quarter in the past, but they changed to year-over-year rates (which is different from annualized quarter-on-quarter) a few years ago.