  
<prompt> Ọkara ikike nha ezinụlọ maka afọ nyocha nke 1990, 1997, 2002, 2007, 2009, yana 2012, nwere nkebioge obi ike 95%
 Ọkara ikike nha ezinụlọ maka afọ nyocha nke 1990, 1997, 2002, 2007, 2009, yana 2012, nwere nkebioge obi ike 95% 
 [[1990, 6.9], [1997, 6], [2002, 5.7], [2007, 5.3], [2009, 5.1], [2012, 5.1]] 
 <response> Atụmatụ 2 na egosi na ọkara ikike (ma ọ bụ onye obibi) nha ezinụlọ gbadara nke ukwuu site na 6.9 na 1990 ruo 5.1 na 2009, mana ọ gbanweghị n'etiti 2009 na 2012  