BoJo seems to have gone stir crazy, a sort of demob happy in reverse. The overbudget, behind schedule, no business case, no environmental case, unwanted and unneeded HS2, the Huawei bullet (now dodged maybe), possible fuel tax rises, green zero carbon eco-lunacy etc. money money money.
The graph highlights the good work done (slowly but surely) over the last decade to reduce borrowing (spending!). Now it is all set to go pear shaped. That said, the graph really does pop the bubble and highlight the lies of the 'austerity' screamers* (quadruple, triple and double the 2007 borrowing from 2009-2016...and they didn't hide it under the mattress). Spending has been more than income since 2002.
Full info debt, deficit, borrowing, receipts etc: UK Gov ONS Public Sector Finances.
* It may have been just a 'vote for me' gimmick but BoJo was wrong to say "austerity" was 'not the way forward'.