O je oludari ti National Institute of Statistics and Studies Economic lati 1986 si 1994.. 
Ní bakanna, tàbí ní ìafikun sí ìwà yìí, àwọn ọmọ ilé òkè kan lè di alakasi nípasẹ̀ ìjọba tàbí ilé aṣòfin ti àwọn ìpínlẹ̀ ìpínlẹ̀, bí ó ti ṣẹlẹ̀ ní Amẹ́ríkà ṣáájú ọdún 1913, tàbí jẹ́ àwọn ẹgbẹ́ gangan tàbí àwọn aṣojú tí àwọn gomina ìpínlẹ̀, bí, bí àpẹẹrẹ, jẹ́ òmọ̀ ní German Bunberde èènì àti ní ìlú ti European Union.. 