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SACRAMENTO, Calif. (AP) — Preliminary figures show that fewer voters likely turned out for Tuesday's no-drama primary than for any regular statewide election in California history.

At least 770,000 ballots have not yet been counted from California's primary election, according to a partial tally posted Thursday by the secretary of state's office that includes 24 of California's 58 counties.

The ballots counted so far put turnout about 18.4 percent, although that will certainly grow as elections officials count hundreds of thousands of outstanding ballots, including 166,000 in Los Angeles County.

Two voting experts, Paul Mitchell of Political Data Inc. and Eric McGee of the Public Policy Institute of California, predict turnout will be 22 to 24 percent.

Turnout has been sliding over the last two decades. The previous low for a non-presidential primary was 33.1 percent in June 2010. Turnout hit 28.2 percent in June 2008, an anomaly when the state split the presidential and primary elections.

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