Australia's casino and poker machine industries are in decline according to a new survey report.

Roy Morgan Research says the last quarter saw a decline in the number of Australians over 18 gambling.

The figures support a trend Morgan has been tracking since 2002. Since the end of calendar year 2002 the number of Australians gambling has fallen from 72% to 65%.

Australians have casinos in every state and territory, and has poker machines in almost every pub in every state and territory except Western Australia. Several new pubs have opened or are expected to open in the country's largest city Sydney. Many Australian pubs generate more revenue from gaming than from their food and beverage operations.

Jane Ianniello, Roy Morgan Research International Director of Tourism, Travel & Leisure, said Friday, "Australians are gradually changing their leisure patterns, with traditional leisure activities such as day trips, hobbies, gambling, and sports participation all in decline. The only activity to increase is using a computer at home, which has increased from 61% in the year ended December 2002 to 74% in the year ended December 2008."