Read this and answer the question. If the question is unanswerable, say "unanswerable".

At the 2009 American Community Survey, Black Americans made the second largest group in the Bronx after Hispanics and Latinos. Blacks of both Hispanic and non-Hispanic origin represented over one-third (35.4%) of the Bronx's population. Blacks of non-Hispanic origin made up 30.8% of the population. Over 495,200 blacks resided in the borough, of which 430,600 were non-Hispanic blacks. Over 61,000 people identified themselves as "Sub-Saharan African" in the survey, making up 4.4% of the population.

How many Bronx residents called themselves "Sub-Saharan African" in 2009?
Over 61,000