The possibility of a US Fed rate hike in October has increased. Here is what the data shows. In September, the Consumer Price Index increased by 0.6% and by 3.7% year-over-year. The index for all items excluding food and energy rose 0.3% in September, up 2.6% annually. The Bureau of Labor Statistics has released the US Consumer Price Index (CPI) data for September. The report gives insight into how inflationary pressures have spread across food, shelter, and other sectors of the economy.