Read this: Executive Directors and Under-Secretaries General of the UN
2011–present Dr Babatunde Osotimehin (Nigeria)
2000–2010 Ms Thoraya Ahmed Obaid (Saudi Arabia)
1987–2000 Dr Nafis Sadik (Pakistan)
1969–87 Mr Rafael M. Salas (Philippines)
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): Who from the UN was missing during 1969-87?
unanswerable