___Census data another sign economy has bottomed out WASHINGTON (AP) â¿¿ More young adults are leaving their parents' homes to take a chance with college or a job. Across the nation, people are on the move again after putting their lives on hold and staying put. Once-sharp declines in births are leveling off, and poverty is slowing. A new snapshot of census data provides sociological backup for what economic indicators were already suggesting: that the nation is in a tentative, fragile recovery. The new 2011 census figures released Thursday show progress in an economic recovery that technically began in mid-2009. The annual survey, supplemented with unpublished government figures as of March 2012, covers a year in which unemployment fell modestly from 9.6 percent to 8.9 percent. ___ Starbucks turns up heat on coffee brewer market NEW YORK (AP) â¿¿ Starbucks Corp. is turning up the heat on the single-serve coffee market, and someone might get burned. The Seattle-based company says it will start selling its new single-serve brewer online this week for $199. The machine will be rolled out in its ubiquitous cafes next month. The arrival of the Verismo, which was announced earlier this year, comes amid intensifying competition in the piping hot market for single-serve brewers and the coffee pods they use. The sector is currently dominated by Green Mountain Coffee Roasters Inc., which pioneered the market after its acquisition of the Keurig brand machine in 2006. But this month, the company's patent on its K-cup technology expired, which spawned copycat versions of coffee pods for Keurig machines. ___ Exxon spends $1.6 billion on North Dakota field Exxon Mobil Corp. will spend $1.6 billion to boost its holdings in the massive Bakken oil field in North Dakota and Montana by 50 percent. Exxon said Thursday it will buy all of the Bakken shale assets held by Denbury Resources Inc. for $1.6 billion in cash. Denbury will also receive Exxon's interest in two fields in Wyoming and Texas.