The 2009 CIA World Factbook

by United States. Central Intelligence Agency

Niger
$NA

Nigeria
$49.8 billion (31 December 2008)
$86.35 billion (31 December 2007)
$32.82 billion (31 December 2006)

Norway
$142.5 billion (31 December 2008)
$357.4 billion (31 December 2007)
$281.1 billion (31 December 2006)

Oman
$14.91 billion (31 December 2008)
$23.06 billion (31 December 2007)
$16.16 billion (31 December 2006)

Pakistan
$23.49 billion (31 December 2008)
$70.26 billion (31 December 2007)
$45.52 billion (31 December 2006)

Palau
$NA

Panama
$6.568 billion (31 December 2008)
$6.219 billion (31 December 2007)
$5.716 billion (31 December 2006)

Papua New Guinea
$NA (31 December 2008)
$NA (31 December 2007)
$6.632 billion (31 December 2006)

Paraguay
$NA (31 December 2008)
$NA (31 December 2007)
$409.1 million (31 December 2006)

Peru
$55.63 billion (31 December 2008)
$106 billion (31 December 2007)
$59.66 billion (31 December 2006)