What was the percentage increase in spending on international tourism from 2011 to 2012 of the country that spent $85.9 billion in 2011?
create table table_29789_3 (_percentage_change varchar, international_tourism_expenditure_2011 varchar, PRIMARY KEY (_percentage_change))
select _percentage_change from table_29789_3 where international_tourism_expenditure_2011 = "$85.9 billion"