| http://www.w3.org/ns/prov#value | - Quoting the 1999 National Gambling Impact Study, Grinols notes the average American adult could spend between $400 and $600 annually if located reasonably close to a Class III gambling facility. (According to the Internal Revenue Service, Class III refers to facilities where gamblers bet against the house, such as casinos or parimutuels.) Using the study's formula and adjusting for inflation, Grin
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