Puerto Rico
the US dollar is used
Qatar
Qatari rials (QAR) per US dollar - 3.64 (2010), 3.64 (2009),
3.64 (2008), 3.64 (2007), 3.64 (2006)
Romania
lei (RON) per US dollar - 3.2 (2010), 3.0493 (2009), 2.5
(2008), 2.43 (2007), 2.809 (2006)
Russia
Russian rubles (RUB) per US dollar - 30 (2010), 31.742
(2009), 24.853 (2008), 25.581 (2007), 27.191 (2006)
Rwanda
Rwandan francs (RWF) per US dollar - 586.25 (2010), 568.176
(2009), 550 (2008), 585 (2007), 560 (2006)
Saint Barthelemy
euros (EUR) per US dollar - 0.7715 (2010), 0.7338
(2009), 0.6827 (2008), 0.7345 (2007), 0.7964 (2006)
Saint Helena, Ascension, and Tristan da Cunha Saint Helenian pounds (SHP) per US dollar - 0.6494 (2009), 0.5302 (2008), 0.4993 (2007), 0.5418 (2006), 0.5462 (2004) note: the Saint Helenian pound is on par with the British pound
Saint Kitts and Nevis
East Caribbean dollars (XCD) per US dollar -
2.7 (2007), 2.7 (2006), 2.7 (2005), 2.7 (2004), 2.7 (2003)
Saint Lucia
East Caribbean dollars (XCD) per US dollar - 2.7 (2007),
2.7 (2006), 2.7 (2005), 2.7 (2004), 2.7 (2003)
Saint Martin
euros (EUR) per US dollar - 0.7715 (2010), 0.7338
(2009), 0.6827 (2008), 0.7345 (2007), 0.7964 (2006)