PRAGUE (ÈIA) - In 2011, revenues from services dropped 1.5% year on year. Similarly to the fourth quarter, the largest decrease in revenues (-9.1%) was recorded in professional, scientific and technical activities. Revenues in transport and warehousing grew 1.2% year on year, with the highest volume increase in ground and tubular transport (+2.4%). Higher revenues were also recorded in air transport (+1.6%) and post and courier services (+1.7%). These figures have been provided by the Czech Statistical Office (ÈSÚ).