For July and August 2009, the inter-annual variation of the Consumer Prices Index (IPC), recorded lows of -0.3% and -0.73%. These negatives values implied the economy was entering a deflationary process (generalized reduction of prices). However, in September, year-on-year variation was positive once again (0.03%), and reversed a negative trend in place since the beginning of the year.

An article in Sigloxxi.com further explains that "...sectors with the most price growth were Health, Entrainment and Culture, Furniture and Equipment and Purchase of Goods and Services ... fuel was up, air transportation, tourism, jewelery and cigarettes".

Source: sigloxxi.com