We compile a complete collection of 19 recent ( since 2000 ) measurements of \Theta _ { 0 } , the rotational velocity of the Milky Way at R _ { 0 } ( the radial distance of the Sun from the Galactic center ) .
These measurements use tracers that are believed to more accurately reflect the systematic rotation of the Milky Way .
Unlike other recent compilations of \Theta _ { 0 } , our collection includes only independent measurements .
We find that these 19 measurements are distributed in a mildly non-Gaussian fashion and a median statistics estimate indicates \Theta _ { 0 } = 220 \pm 10 km s ^ { -1 } ( 2 \sigma error ) as the most reliable summary , at R _ { 0 } = 8.0 \pm 0.3 kpc ( 2 \sigma error ) .