Keir Starmer is the new Prime Minister of the United Kingdom.

The years since the Brexit referendum have been characterised by massive instability at the top of British politics. First David Cameron resigned, then Theresa May called a snap election, lost her majority and was removed by her party.

She was replaced by Boris Johnson, but he struggled to keep Parliament running after he expelled a number of his own MPs and was forced to call a snap election himself. He won a stable majority and people were predicting that he could stay on as Prime Minister for a decade... But within two years he had been brought by scandal and his party replaced him with Liz Truss.

Liz Truss was the shortest serving Prime Minister we've ever had (beating the record set by George Canning who was appointed Prime Minister and then promptly died of tuberculosis), famously being outlasted by a lettuce. She was replaced by Rishi Sunak, who managed to stay in the job for a year and a half before taking the Tories to their worst ever defeat.

How will Keir Starmer compare to the decade of instability? Will he bring us back to the days when a Prime Minister could be expected to stay in the job for up to a decade?

Which year will he be replaced as Prime Minister?

If the money is going towards a long tenure, I will split out future years from Other and anyone with shares in Other will receive an equal number of shares in each of those future years.