For the first couple a long time, Ai lived in Philadelphia and San Francisco. The highest premiums of female exact same-sex relationship were identified in Oakland (2.1% of all marriages), Seattle, San Francisco, Springfield (MA) and Portland (OR), while gay male marriages ended up most frequent in San Francisco (3.2%), Washington D.C., New York City, Seattle and Fort Lauderdale. Matt Zapotosky (The Washington Post) (December 18, 2017).