Published at: 14.10.2011 - 11:00 In 2010 the total amount of the expenditure on research and development activity (R&D) is 420.1 million BGN which increases by 16.4% in comparison with the previous year and the annual growth tendency retains for the period of 2006 - 2010. Press release NIRD_2010p_en.pdf Statistical domain Research and development activity (R&D)