Executive Directors and Under-Secretaries General of the UN
2011present Dr Babatunde Osotimehin (Nigeria)
20002010 Ms Thoraya Ahmed Obaid (Saudi Arabia)
19872000 Dr Nafis Sadik (Pakistan)
196987 Mr Rafael M. Salas (Philippines)
Which doctor from Pakistan served until 2010? (If the question is unanswerable, say "unanswerable")
unanswerable