Credit card usage has increased by 7.5% from June 2012 to June 2013, primarily because of an increase in grocery sales. Incidentally, the cost of groceries have increased by 4.9% just since January of this year.
Domestic card holders used their plastic 8.2% more in the one-year span measured, while international cards were swiped 4.6% more, RÚV reports.
While some commodities have experienced increased sales, others have waned. Consumers have spent 14.4% more on alcohol year over year, while spending 5.9% less on gasoline.