Consumer Price Index (CPI) - All Urban Consumers
1 Month Percent Change
Source: Bureau of Labor Statistics (BLS)
Series Id: CUSR0000SA0
Seasonally Adjusted
U.S. city average, All items

http://data.bls.gov/PDQ/servlet/SurveyOutputServlet?years_option=all_years&output_view=pct_1mth&periods_option=all_periods&output_format=html&reformat=true&request_action=get_data&initial_request=false&data_tool=surveymost&output_type=column&series_id=CUSR0000SA0