Singapore
Singapore dollars (SGD) per US dollar - 1.3702 (2010),
1.4545 (2009), 1.415 (2008), 1.507 (2007), 1.5889 (2006)
Sint Maarten
Netherlands Antillean guilders (ANG) per US dollar -
1.79 (2009), 1.79 (2008), 1.79 (2007), 1.79 (2006)
Slovakia
Slovak koruny (SKK) per US dollar - 0.774 (2010), 0.718
(2009), 21.05 (2008), 24.919 (2007), 29.611 (2006)
Slovenia
euros (EUR) per US dollar - 0.77399 (2010), 0.72 (2009),
0.6827 (2008), 0.7345 (2007)
Solomon Islands
Solomon Islands dollars (SBD) per US dollar - NA
(2007), 7.3447 (2006), 7.5299 (2005), 7.4847 (2004), 7.5059 (2003)
Somalia
Somali shillings (SOS) per US dollar - NA (2007-08), 1,438.3
(2006) official rate; the unofficial black market rate was about
23,000 shillings per dollar as of February 2007
note: the Republic of Somaliland, a self-declared independent
country not recognized by any foreign government, issues its own
currency, the Somaliland shilling
South Africa
rand (ZAR) per US dollar - 7.38 (2010), 8.4234 (2009),
7.9576 (2008), 7.05 (2007), 6.7649 (2006)
Spain
euros (EUR) per US dollar - 0.7715 (2010), 0.7179 (2009),
0.6827 (2008), 0.7345 (2007), 0.7964 (2006)
Sri Lanka
Sri Lankan rupees (LKR) per US dollar - 113.36 (2010),
114.95 (2009), 108.33 (2008), 110.78 (2007), 103.99 (2006)
Sudan
Sudanese pounds (SDG) per US dollar - 2.36 (2010), 2.32
(2009), 2.1 (2008), 2.06 (2007), 2.172 (2006)