According to provisional data released by ISTAT, in September, the national index of consumer prices for the entire community (NIC), including tobacco, reported an increase of 0.1% compared to August 2011 and 3.1% over the same month last year (it was 2.8% in August). Inflation for 2011 amounted to 2.6%. Core inflation, excluding energy and fresh food, rose to 2.5%, with an acceleration of three-tenths of a percentage point compared to August (+2.2%). Excluding energy goods alone, the trend growth rate of consumer price index rose to 2.3% from 2.1% in August. The trend growth of prices of goods rose to 3.3%, with an acceleration of four-tenths of a percentage point compared to August 2011 (+2.9%) and that of prices of services rose to 2.7%, from 2.5% the previous month. As a result of these developments, the inflation differential between goods and services increased by two tenths of a point compared to August. In September, trends of acceleration of growth in consumer prices are found in most of the divisions of expenditure, with particular reference to goods and services for Recreation and culture, accommodation and catering services, Clothing and footwear products and other goods and services. High growth rates of prices, but essentially unchanged compared to the figure recorded in August, regard the energy Goods. The Harmonised Index of Consumer Prices (HICP) based on preliminary estimates increased by 1.9% on a monthly basis and 3.5% on an annual basis, in marked acceleration compared to August 2011 (+2.3%). The strong conjunctural variation is largely due to the disappearance of the seasonal sales.