More or Less Monday, 7 May, 2007 BBC Radio 4, 1630 BST Listen to programme Click here to have your say

This week on More or Less, we offered the pick of the numbers from 10 years at Number 10 for Tony Blair.

There have been quite a few, what with an explosion of league tables, performance indicators, targets and the like, as well as the usual measures of the performance of the economy, and they have saturated the news and politics as never before.

But for what it tells us about how the country is changing and how the government has tried to influence its course, we examine one set of numbers in particular, said to be worthy of becoming Tony Blair's monument.

Find out what they are, and what they tell us in this week's programme.

Big numbers

We also had our own guide to the age of the trillion.

It is a big number, but how big?

And why has its time arrived?

Get it into proportion with some suggestions from the team.

And there was more on our reporter's continuing attempt to claim numbers from men.

Brace yourself for some caricatures, as she set out to discover numbers' feminine side.

Lorenz Manifold

And see how beautiful maths can be with a crocheted version of the "Lorenz Manifold", featured in this week's programme.

Presenter: Andrew Dilnot
Producer: Michael Blastland

BBC Radio 4's More or Less was broadcast on Monday, 7 May, 2007 at 1630 BST.

You can e-mail us by using the form below:

Disclaimer: The BBC may edit your comments and cannot guarantee that all emails will be published.