http://www.umich.edu/news/index.html?Releases/2000/Mar00/r032300a
about 25% of Asian women are married to white men, 45% of cohabiting Asian women have white boyfriends.
Living in the New York City metro area, my anecdotal experience would have presumed the figures would be:
about 25% of Asian MEN married to a white WOMAN and 40% of cohabitating Asian MEN have white girlfriends
but
1. that would only be my own anecdotal impression, from my own local experience, and
2. neither your data nor my experience has any answers that, in either case, would identify the rate of Asian American couplings with African-American, or Hispanic partners, in comparison