what's the time required for prices to double with highest monthly inflation rate being 29,500%
create table table_13681_2 (time_required_for_prices_to_double varchar, highest_monthly_inflation_rate varchar, PRIMARY KEY (time_required_for_prices_to_double))
select time_required_for_prices_to_double from table_13681_2 where highest_monthly_inflation_rate = "29,500%"