3. operation revenue/income In 1979, operation income of all lodging industry was less than 100 million dollars In 1997, operation revenue came up to 81.2 billion rmB In 2003, of all the 9751 star-rated hotels the income came to98, 316 billion rmb3. operation revenue / income • In 1979, operation income of all lodging industry was less than 100 million dollars. • In 1997,operation revenue came up to 81,2 billion RMB • In 2003，of all the 9751 star-rated hotels, the income came to98.316 billion RMB