£42,000 a year is enough to cover what a typical family spends in 12 months 

Typical annual outgoings are £30,571, with the average British family - consisting of 2.4 people - saving around £2,160. https://www.dailymail.co.uk/news/article-9440421/42-000-year-cover-typical-family-spends-12-months.html?ns_mchannel=rss&ns_campaign=1490&ito=1490