The graph presents the unemployment rate (in \%) for the period from March 2008 to April 2009, obtained based on data observed in the metropolitan regions of Recife, Salvador, Belo Horizonte, Rio de Janeiro, São Paulo, and Porto Alegre.
The median of this unemployment rate, in the period from March 2008 to April 2009, was\\
(A) $8.1\%$\\
(B) $8.0\%$\\
(C) $7.9\%$\\
(D) $7.7\%$\\
(E) $7.6\%$