More or Less

Does Venezuela really have the biggest oil reserves in the world?

When people think of oil rich nations their mind generally goes to Saudi Arabia, Iraq and the US. But according to international statistics, the country with the largest oil reserves is Venezuela, with 300 billion barrels worth. At their peak they produced over 3.5 million barrels of the stuff per day. However, due to lack of investment, sanctions and mismanagement that peak is long gone. Following their military intervention, the US administration claims they can get Venezuela's oil production up and running at full capacity within 18 months. But can they, and why is it that estimates for other countries oil reserves have fluctuated but Venezuela’s has stayed at 300 billion barrels for over two decades? Presenter: Tim Harford Producer: Lizzy McNeill Series Producer: Tom Colls Editor: Richard Vadon Production Co-Ordinator: Brenda Brown Sound Mix: Dave O’Neill

The Stats of the Nation: Immigration, benefits and inequality

What kind of state does the UK find itself in as we start 2026? That’s the question Tim Harford and the More or Less team is trying to answer in a series of five special programmes. In the final episode, we’re looking at the numbers behind some of the UK’s most potent political debates: Has 98% of the UK’s population growth come from immigration? Do we spend more on benefits in the UK than in other high-income countries? Is the gap between rich and poor growing? Get in touch if you’ve seen a number in the news you think we should take a look at: moreorless@bbc.co.uk Contributors: Madeleine Sumption, Director of the Migration Observatory at Oxford University Lukas Lehner, Assistant Professor at the University of Edinburgh Arun Advani, Director of the Centre for the Analysis of Taxation and a Professor of Economics at the University of Warwick. Alex Scholes, Research Director at NatCen Credits: Presenter: Tim Harford Producers: Lizzy McNeill, Nathan Gower, Katie Solleveld and Charlotte McDonald Series producer: Tom Colls Production co-ordinator: Maria Ogundele Sound mix: Sarah Hockley and James Beard Editor: Richard Vadon

The Stats of the Nation: Older people, education, prisons and the weather

What kind of state does the UK find itself in as we start 2026? That’s the question Tim Harford and the More or Less team is trying to answer in a series of five special programmes. In the fourth episode, we’re searching for answers to these questions: Are one in four pensioners millionaires? Is England’s education system performing better than Finland’s? And how does it compare to Scotland, Wales and Northern Ireland Are our prisons going to run out of space? Is the weather getting weirder? Get in touch if you’ve seen a number in the news you think we should take a look at: moreorless@bbc.co.uk Contributors: Heidi Karjalainen, Senior Research Economist at the Institute for Fiscal Studies Harry Fletcher-Wood, Director of Training at StepLab John Jerrim, Professor of Education and Social Statistics at University College London Cassia Rowland, Senior Researcher at the Institute for Government Friederike Otto, Professor of Climate Science at Imperial College London Credits: Presenter: Tim Harford Producers: Lizzy McNeill, Nathan Gower, Katie Solleveld and Charlotte McDonald Series producer: Tom Colls Production co-ordinator: Maria Ogundele Sound mix: Sarah Hockley and Neil Churchill Editor: Richard Vadon

The Stats of the Nation: Sex, drugs and empty homes

What kind of state does the UK find itself in as we start 2026? That’s the question Tim Harford and the More or Less team is trying to answer in a series of five special programmes. In the third episode, we’re searching for answers to these questions: Are there really 700,000 empty homes that could be used to solve the housing crisis? Does the NHS pay less for drugs than health services in other countries? Is violent crime going up or down? Is the UK in the midst of a fertility crisis? Get in touch if you’ve seen a number in the news you think we should take a look at: moreorless@bbc.co.uk Contributors: Dr Huseyin Naci, Associate Professor and Director the Pharmaceutical Policy Lab at the London School of Economics Professor Jennifer Dowd, deputy director of the Leverhulme Centre for Demographic Science at the University of Oxford Credits: Presenter: Tim Harford Reporters: Lizzy McNeill and Nathan Gower Producers: Katie Solleveld and Charlotte McDonald Series producer: Tom Colls Production co-ordinator: Maria Ogundele Sound mix: Sarah Hockley and James Beard Editor: Richard Vadon

The Stats of the Nation: Health

What kind of state does the UK find itself in as we start 2026? That’s the question Tim Harford and the More or Less team is trying to answer in a series of five special programmes. In the second episode, we’re asking some interesting questions about health and the NHS: Has life expectancy in the UK starting to go up again at last? What statistics tell you about the health of the NHS? After years of promises, are there actually any more GPs? What’s happening to cancer rates in the UK? What’s gone wrong with productivity in the health service? Get in touch if you’ve seen a number in the news you think we should take a look at: moreorless@bbc.co.uk Contributors: Stuart McDonald, Head of Longevity and Demographic Insights at the consultancy Lane Clark & Peacock (LCP) Jon Shelton, Head of Cancer Intelligence at Cancer Research UK Ben Zaranko, Associate Director of the Institute for Fiscal Studies Credits: Presenter: Tim Harford Reporter: Nathan Gower Producers: Lizzy McNeill, Katie Solleveld and Charlotte McDonald Series producer: Tom Colls Production co-ordinator: Maria Ogundele Sound mix: Sarah Hockley and Neil Churchill Editor: Richard Vadon