 Kate Ryan oo ah cilmi baare katirsan machadka Urbis researcher ee dalka Australia oo la hadlay wargeyska Domain ee kasoo baxa dalkaas ayaa sheegay in xabaalaha magaalooyin ay kamid tahay Melbourne dadka loogu aaso qaab uu meydka waligii isaga jirayo godka, halka magaalooyinka kalena godadka la kiresyto oo tusaale ahaan 20, 25 ama 90 sano kadib qofka lafahiisa laga saarayo godka. 