PARLIAMENT Prime Minister Najib Abdul Razak has spent more of the country's petroleum income since taking office in 2009, than any of his predecessors including Dr Mahathir Mohamad, claimed a PKR lawmaker.

Rafizi Ramli (PKR-Pandan) said Najib was the "champion of champions" and had spent RM376 billion of the country's petroleum income between 2009 and 2016, or an average of RM54 billion per year.

"Mahathir, who was PM for 22 years, spent RM163 billion, or RM8 billion a year," Rafizi told the House today.