Year 1972

1982

1992

2002

2012

CPI

41.800

96.500

140.300

179.880

229.594

Soda

0.10

0.30

0.50

1.00

1.25

The above table lists the historical CPI values for the years 1972-2012. It also lists the costs of a can of soda for those years.

Based on the information, has the price of a soda increased more, less or stayed the same as inflation? Provide at least 2 calculations that support your claim and write a least two sentences explaining your findings.

Hint: CPI proportions may be useful here.