Cpi data shows another decline from year to year for June. From June 2008 to June 2009, the CPI showed a -1.43% increase. Similarly year to year monthly decreases have occurred for the last four months (Mar, Apr, May, Jun). It appears that the rate of decrease is increasing.
The table below shows this data. The second row is monthly data for year 2008, the third row is monthly data for year 2009, and the fourth row is the year to year percentage increase for that month.
Jan Feb Mar Apr May Jun
632.3 634.14 639.64 643.52 648.93 655.47
632.49 635.64 637.18 638.77 640.62 646.12
0.03 0.24 -0.38 -0.74 -1.28 -1.43
Data is from the Bureau of Labor Statistics, and series CUUR0000AA0 is used. Data here is normalized so that 1967=100.
The BLS report for June is given here.