By DON THOMPSONSACRAMENTO, Calif. (AP) â¿¿ After a long twilight, business is booming again at Matt Construction as high-end orders come in for hotels and office complexes. The Los Angeles-area company increased hiring by about 20 percent this year, adding 30 employees as more construction jobs â¿¿ and bigger ones â¿¿ piled up. Such stories are a major reason California's jobless rate dipped below 10 percent last month for the first time since the recession began. The 9.8 percent unemployment rate reported Friday by the Employment Development Department is down from 10.1 percent in October. The last time the unemployment rate was in single digits was in January 2009, when the number was 9.7 percent. The improvement, led by a surge in technology jobs that have spurred a wave of new construction, comes as something of a surprise. Leading economists had predicted that California's unemployment rate would remain in double digits through 2013. Al Matt, executive vice president of Matt Construction, said his Santa Fe Springs-based company has seen a strong recovery from the height of the recession in 2009, when revenues dropped by half. "Overall, our revenues are up in 2012 by a substantial amount, as much as 30 percent," he said. "It looks like next year will be a similar sort of increase." There are other positive signs. The number of unemployed Californians dropped to 1.8 million, also the lowest number in nearly four years. The state has added more than 564,000 nonfarm payroll jobs since the economic recovery began in 2010. "The job gains have been fairly widespread," said economist Jerry Nickelsburg, a professor at the University of California, Los Angeles. "We're finally seeing an increase in construction, particularly single-family housing." He added that such signs are "continued evidence that California's economy is growing and is recovering."