What's changed since Obama's first State of the Union?

Barack Obama is about to deliver his final State of the Union address. Among other aims, the speech looks to mark where the US has been over the past year.

Here's a selection of what has changed since Mr Obama gave his first address to Congress in 2009.

War in Afghanistan

While the IS conflict threatens to re-engage the US in Iraq, the number of troops in Afghanistan since Mr Obama's first term both sharply increased (during a policy called "the surge") and sharply decreased. While the US has finished its combat mission in Afghanistan, Mr Obama backtracked on his original plan to have only 1,000 troops - mainly for embassy security and training - after 2015.

About 5,500 troops will still be in the country when he leaves office in 2017.

Unemployment

The great recession hit the US economy hard, and a major rise in unemployment - which began in the last months of George W Bush's presidency - continued through Mr Obama's first two years in office, peaking at 10% in October 2009.

Slowly, unemployment has returned to more normal levels for the US, reaching 5% for three months in a row at the end of 2015.

The Stock Market

Mr Obama entered office at the near bottom of US markets and the economy at large. Indexes like the Dow Jones Industrial Average and Nasdaq have since regained their massive losses of 2008 and 2009 but have seen increased volatility, including a dramatic drop last year.

Petrol prices

In the past two years, petrol prices in the US have dropped dramatically, averaging about $2.00/gal (£0.36/litre) across the entire US. This brings petrol costs back down to similar levels seen during the beginning of Mr Obama's presidency after reaching a high of $3.97/gal in May 2011.

Increased fracking within the US and Canada, increased production elsewhere, and a global lag in the demand for oil has lowered prices in the US.

Presidential approval rating

Mr Obama's approval rating was very high during his first few weeks in office - not surprising. But after an initial fall, Mr Obama's weekly approval rating has bounced between 40% and 50%.

This puts the 44th president in the company of such presidents as Ronald Reagan and Lyndon Johnson, whose approval ratings were in the high-40s in the fourth January after re-election. Bill Clinton had a 62% approval rating, while George W Bush had a 33% approval rating during this point of their presidencies.

Culture: Oscar-winning movies and #1 Songs

A look at what was playing on radio and music players in the US during Mr Obama's speeches. What big name movie was about to win Hollywood's top prize?