Age	Periodo	Total
Under 1 year old	2013	10
Under 1 year old	2012	9,8
Under 1 year old	2011	9,7
Under 1 year old	2010	8,6
1 year old	2013	34,1
1 year old	2012	32,6
1 year old	2011	31,8
1 year old	2010	29
2 years old	2013	52,1
2 years old	2012	51,8
2 years old	2011	49,8
2 years old	2010	48,1
3 years old	2013	95,9
3 years old	2012	95,8
3 years old	2011	95,2
3 years old	2010	96,6
4 years old	2013	97,2
4 years old	2012	96,7
4 years old	2011	97
4 years old	2010	100
5 years old	2013	97,1
5 years old	2012	97,5
5 years old	2011	97,7
5 years old	2010	99,8