  
<prompt> De jure na nufin girman gida ga shekarun bincike na 1990, 1997, 2002, 2007, 2009, and 2012, tare da kashi 95% na tabbacin tazara
 De jure na nufin girman gida ga shekarun bincike na 1990, 1997, 2002, 2007, 2009, and 2012, tare da kashi 95% na tabbacin tazara 
 [[1990, 6.9], [1997, 6], [2002, 5.7], [2007, 5.3], [2009, 5.1], [2012, 5.1]] 
 <response> Hoto na 2 ya nuna cewa, gidaje masu nufin de jure (ko gidaje na yau da kullum) girmansu na raguwa sosai daga 6.9 a 1990 zuwa 5.1 a 2009, amma kuma ba su sauya ba a tsakanin 2009 zuwa 2012  