Exam questions - Chapters 1 and 2

We have at our disposal GDP and the value of personal income taxes. What is missing to be able to calculate the Net National Product (NNP)?
The Consumer Price Index (CPI)
The GDP in 2005 evaluated at 2001 prices was equal to 460, and the consumer price index in 2005 with base 100 in 2001 was equal to 105. We can say with certainty that :