By Jack Mendel The UK government borrowed £15bn last month, almost a billion pounds more than the previous year and the highest for May since the Covid-19 pandemic. In fresh figures from the Office for National Statistics released this morning, public sector net debt, excluding public sector banks, was just under 100 per cent of total GDP. While borrowing for May was six per cent higher than the previous year, it was actually 4.2 per cent lower than forecast by the Office for Budget Responsibility. Since records began in 1993, May’s borrowing figure was the highest apart from 2020 and 2021, du…