 The Republic of Ireland in particular has seen large @-@ scale immigration , with 420 @,@ 000 foreign nationals as of 2006 , about 10 % of the population . A quarter of births ( 24 percent ) in 2009 were to mothers born outside Ireland . Chinese and Nigerians , along with people from other African countries , have accounted for a large proportion of the non – European Union migrants to Ireland . Up to 50 @,@ 000 eastern and central European migrant workers left Ireland in response to the Irish financial crisis . 
 The Republic of Ireland in particular <a href='been_done' title='1'><mark>has</mark></a> seen large @-@ scale immigration , with 420 @,@ 000 foreign nationals as of 2006 , about 10 % of the population . A quarter of births ( 24 percent ) in 2009 <a href='uninflect' title='2'><mark>were</mark></a> to mothers born outside Ireland . Chinese and Nigerians , along with people from other African countries , <a href='been_done' title='3'><mark>have</mark></a> accounted for a large proportion of the non – European Union migrants to Ireland . Up to 50 @,@ 000 eastern and central European migrant workers left Ireland in response to the Irish financial crisis . 
Da Republic of Ireland in particular done seen large @-@ scale immigration , w/ 420 @,@ 000 foreign nationals as of 2006 , about 10 % of the population . A quarter of births ( 24 percent ) in 2009 was to mothers born outside Ireland . Chinese and Nigerians , along with niggas from other African countries , done accounted fa a large proportion of the non – European Union migrants to Ireland . Up to 50 @,@ 000 eastern and central European migrant workers left Ireland in response to the Irish financial crisis .