OBS_VALUE: Additional source: Indicator 8.2.10 (p. 72) of H. B. Okholm et al., 'Main Developments in the Postal Sector (2008-2010)', Part B: Country Fiche Appendix (29 November 2010): http://ec.europa.eu/internal_market/post/doc/studies/2010-main-developments-country_en.pdf