Read the following paragraph and determine if the hypothesis is true:

BUENOS AIRES, Aug 2 (Reuters) - Argentina's July tax revenue rose 28.2 percent from a year earlier to a record 61.32 billion pesos ($13.37 billion), Argentine President Cristina Fernandez said in a televised speech on Thursday. Fernandez also said the country's trade surplus from January through July totaled $8.32 billion. The surplus in the first six months of this year totaled $7.34 billion, according to government data released last month.

Available options:
- Yes;
- It's impossible to say;
- No;
Hypothesis: Sao Paolo has the highest tax rate in Argentina.
It's impossible to say