Portugal
38.5 (2007)
35.6 (1995)
Romania
32 (2008)
28.8 (2003)
Russia
42.2 (2009)
39.9 (2001)
Rwanda
46.8 (2000)
28.9 (1985)
Senegal
41.3 (2001)
41.3 (1995)
Serbia
26 (2008)
30 (2003)
Sierra Leone
62.9 (1989)
Singapore
48.1 (2008)
Slovakia
26 (2005)
26.3 (1996)
Slovenia
28.4 (2008)
23.8 (2004)