The diagram below illustrates the UK immigration, emigration and net migration during 10 years from 1999 to 2008.

The provided 1line and bar chartcombined chart illustrates long-term international migration trends in the United Kingdom between 1999 and 2008, specifically comparing immigration, emigration, and the resulting net migration figures. Overall, it is evident that immigration numbers consistently surpassed those of emigration throughout the decade, resulting in a consistently positive net migration. While both population inflows and outflows exhibited an overarching upward trajectory, net migration was characterized by significant volatility, recording distinct peaks in 2004 and 2007. In terms of 2overallgross migration flows, immigration commenced at approximately 450,000 in 1999 and experienced a gradual increase to reach a peak of nearly 600,000 in 2004. 3Following a marginal dip, figures recovered to match this high in 2006 before plateauing for the remainder of the period. 4In contrast, emigration began at a lower baseline of just under 300,000 but mirrored this progressive climb, hitting 400,000 in 2006. Notably, after a moderate fall in 2007, outflows surged to a decade-high of 5nearly 430,000420,000 in the final year. 6Regarding net migration,As a result, net migration remained relatively static at around 150,000 until 2003. However, 7there was a significant rise in 20042004 experienced a significant rise to 250,000, driven primarily by the surge in arrivals. This was followed by a two-year decline and a secondary peak of 8nearly 240,000roughly 230,000 in 2007, before the figure settled back to approximately 160,000 in 2008.