What mean "As much as" in this text

A recent report forecasts renueve of as much as 8.3.bn by 2010 in Europe only. A fourfold increase in four years

 

Un informe reciente da una previsión de ingresos de unos 8 300 millones de euros de aquí a 2010 sólo en Europa, lo que supone un aumento del 400 % en cuatro años.

I want learn English I takes a long time to learn English, I don't know anything. I would like some day talk English, I need speak English to I find job, I am social media strategic and it is necessary talks English. Thank you, if someone want help me, I will promise I help you to talk Spanish.