Caucasus Barometer time-series dataset Armenia HEATPUCH: Heating with public central heating system Sual mətni: Please tell me what were the most important means of heating your dwelling last winter? - Public central heating system, İl qrupu üzrə (%),Yes,No,DK/RA 2009,1,99,0 2010,0,100,0 2011,1,99,0