In the 2009 Bulgarian parliamentary election the 27th Multi-member Constituency -- Stara Zagora elected 11 members to the Bulgarian National Assembly : 10 of which were by proportionality vote .
1 was by first - past - the - post voting .
In the 2009 Bulgarian parliamentary election the 27th Multi-member Constituency -- Stara Zagora elected 11 members to the Bulgarian National Assembly : 10 of which were by proportionality vote and 1 was by first - past - the - post voting .