Annual federal and state affordable housing funding for the East Bay and Peninsula plunged by $185 million over the last decade, worsening the regional housing crisis, according to new reports. Alameda, Contra Costa and San Mateo counties collectively had $65.6 million of state and federal funding in fiscal year 2015-2016, a 74 percent drop from $250.6 million in funding in fiscal year 2008-2009. Alameda County saw a bulk of the loss, with a $115 million reduction, or 74 percent. Contra Costa lost 66 percent in funding over the same period, a difference of $37 million. San Mateo County had 83 percent less funding, a nearly $33 million decline. The analysis was released by California Housing Partnership Corp., Non-Profit Housing Association of Northern California and East Bay Housing Organizations, using data from the government and the University of California, Berkeley.