The retail trade sector reported a substantial 4 pc turnover increase in the first half of 2012, despite a slight slowdown of sales in June, mainly driven by the non-food goods category, which declined against both May this year and June 2011, the National Statistics Institute reports.In June 2012, the turnover of the retail trading sector (except the trade of automobiles and motorcycles) dropped against the previous month both in unadjusted series (-0.7 pc) and in series adjusted with the number of working days and seasonal factors (-1.1 pc). Compared to the previous month, the turnover of the retail trade sector (except automobiles and motorcycles) declined by 0.7 pc as a whole, because of weaker results for the sales of non-food goods (-2.8 pc) and the retailing of fuels for motor vehicles in specialised shops (-0.1 pc). The sales of food goods, drinks and tobacco advanced by 1.6 pc., Medifax informs.According to INS, as compared to June 2011 the turnover of the retail sector (except automobiles and motorcycles) increased by 3.9 pc in unadjusted series, due to the sales of fuels for motor vehicles in specialised shops (+10.2 pc) and the sales of food goods, drinks and tobacco (+4.4 pc). Sales of non-food goods dwindled by 0.1 pc.Another report released by INS yesterday, reveals that prices of industrial output aimed at both domestic and foreign markets declined by 0.2 pc in June against May this year, but advanced by 5.8 pc compared to June 2011. Per activity sector, higher prices were reported in June – against May – by the extractive industry (0.9 pc) and the production and supply of electricity, thermal energy, gas, hot water and air conditioned (0.2 pc). Against June 2011, prices went up in the water distribution, urban cleaning, waste management and decontamination sector (28.9 pc), the processing industry (6.1 pc), the extractive industry (4.4 pc) and in the production and supply of electricity, thermal energy, gas, hot water and air conditioned (2.3 pc).