CA: Independent Registration at an All Time High in the Golden State

According to California's Secretary of State, the percentage of voters who decline to state an affiliation with any party is at an all time high in the Golden State.  From a press release (.pdf):

A new all-time high percentage of California voters, 20.4 percent, have no party preference, according to the latest Report of Registration . . . the previous record for the proportion of unaffiliated voters was 20.25 percent of all registered voters, reported in October 2010 . . . 

The release notes that 44% of California's voters are Democrats and 31% are Republicans.  The only third party with more than 1% of registered voters is the American Independent Party, which has 2.34% support in the state.