A 2007 investigation by the International Organization for Migration found that the Algerian community in the UK in general was fairly young, close to half of all Algerians in the UK were projected to be under 40 years old.[5] As already explained, the Algerian community in the UK is a fairly small but fast emmerging ethnic group. The same IOM investigation suggested that out of all the Algerians living in the UK, 20% of them were registered in the 1991 UK Census and a further 30% in 2001 UK Census - with the remaining 50% having come during the first decade of the 21st century.[5] In terms of gender, the 2001 census showed that 71% of Algerians in the UK were male, whilst recent estimates have suggested the imbalance between males and females could be even greater. This is thought to be down to the fact that men without documents are more likely to reach the UK than women without documents.[5]