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The Tour de France and the statistics of cheating

Can maths prove whether the Tour de France has successfully clamped down on drugs?

• 30 mins

Levelling the playing field

Which countries punch above and below their weight at the Olympics? With Tim Harford.

• 30 mins

How extraordinary is Ye Shiwen?

Ye Shiwen's statistics, what's happening to homelessness, and TV's murder capital.

• 30 mins

How to lose money, fast

High-frequency trading, Trumptonomics and more medalling with the Olympics.

• 30 mins

The great playing field sell off?

How many school playing fields have really been sold off? Presented by Tim Harford.

• 30 mins

Ash Dieback and Fergie-Time

Tim Harford fells some ash tree related statistics and asks if Fergie-time really exists.

• 25 mins

The art of polling, Kevin Pietersen, stacking lego

Tim Harford looks at opinion polling, and how high you can stack Lego bricks.

• 25 mins

Royal twins and the Autumn Statement

Tim Harford asks what severe morning sickness tells us about the chances of having twins.

• 25 mins

The Census, and what is 'rare'?

Tim Harford looks at why the estimate for Eastern Europeans coming to the UK was so wrong.

• 25 mins

Fact-checking US gun crime statistics

Tim Harford investigates US gun crime statistics and the average age of first-time buyers.

• 25 mins

Numbers of 2012

Tim Harford and guests look back at the most surprising statistics of 2012.

• 25 mins

The Parable of the Ox

What the Parable of the Ox can tell us about a bloated and dysfunctional financial system.

• 30 mins

Austerity, Thatcher, Mozart and dead birds

Tim Harford talks to a student whose work raises questions about austerity policies.

• 25 mins

The true age of your dog, and how much does the EU cost?

Tim Harford on the cost of the EU, military suicides, Richard III and dog years.

• 25 mins

Angelina Jolie's 87% cancer risk; Romanian crime stats

Angelina Jolie's 87% cancer risk examined. And is the UK suffering a Romanian crime wave?

• 25 mins

Economics of Scottish independence; Ryanair punctuality

Tim Harford on the economics of Scottish independence, Ryanair's punctuality and cat years

• 25 mins

The maths of spies and terrorists

Tim Harford examines the maths of terror surveillance, and kidney donations.

• 25 mins

A&E, and the chances of having twins

Tim Harford explores the world of official statistics, plus the chances of having twins.

• 25 mins

What price the life of a badger?

Tim Harford queries the numbers of the badger cull, plus NHS deaths and climate migrants.

• 30 mins

The Death Toll in Syria

Tim Harford on conflict deaths, Super Pumas and whether left-handers die young.

• 30 mins

How long can you wait to have a baby?

Tim Harford discusses fertility statistics, the GDP and Africa's 'drinking problem'.

• 30 mins

Do free school meals work?

Tim Harford on free school meals, the Formula 1 film Rush, plastic bags and cycling risk.

• 30 mins

Are patients 45% more likely to die in NHS hospitals than US ones?

Tim Harford looks at the claim that there are more hospital deaths in England than the US.

• 30 mins

An army of drunk children?

Are hundreds of young children visiting A&E because of alcohol? Tim Harford investigates.

• 25 mins

Britain's 80,000 homeless children

Tim Harford on a Shelter statistic. Plus wine shortage, maths and magic, and football.

• 25 mins

Numbers of the year

The most informative, revealing and idiosyncratic statistics of 2013, with Tim Harford.

• 25 mins

The Power of Pension Fees

Tim Harford and Money Box's Paul Lewis show how small charges hit pension funds hard.

• 25 mins

The Week That Kills

Tim Harford tries to find out why this is the week of the year in which most deaths occur.

• 25 mins

Fact-checking obesity crisis claims

Tim Harford discovers that health data contradict a report which says obesity is worsening

• 25 mins

Counting the contribution of immigrants

Tim Harford presents a detailed looked at the impact immigration has on the public purse.

• 25 mins