Main reasons for migration to from the UK in 2007

The graph compares different kinds of reasons in terms of the percentage of immigration and emigration in the UK in 2007.
As can be seen from the chart , the most significant reason which made people come and leave out was definite job while looking for work and formal study occupy less percentage.
A closer look at the data revealed that the proportions of immigration in definite job and formal study were 30% and 26% respectively , as opposed to 29% and 4% for emigration. Similarly , 15% of total immigration in accompany/join , in comparison with 13% for emigration.
It is noticeable that the figure for emigration in looking for work was 22% , was 11% higher than that for immigration . In a similar way, the percentage of emigration in no reason started occupied 18%, was three times as high as that of immigration. 14% of total emigration and 11% of total immigration in other reasons