A further 30 people were reported as having died within 28 days of a positive test for COVID-19, meaning there were 211 deaths between April 9 and 15, a fall of 2.3% compared with the previous seven days.
It said shopper numbers, or footfall, climbed 4% on UK high streets, but fell 4.4% in retail parks and 2.3% in shopping centres. Footfall across Britain remained 40.8% lower than during the same week last year, Springboard said.
England entered a third national lockdown on Jan. 4 to stem a surge in COVID-19 cases that threatened to overwhelm the health system.
Under current lockdown rules, holidays are banned and only those travelling for specific work or family reasons are allowed to go abroad. The government said the new form would help it to police those rules.
Britain has said that people might be able to travel again from mid-May, with more information due in mid-April.
Britain left the EU at the end of January last year, but kept its full access to the 27-nation bloc's single market until the end of 2020, when it was replaced by a trade agreement.
For the EU on average, the exit of the UK from the European Union on Free Trade Agreement terms is estimated to generate an output loss of around 0.5% of GDP by the end of 2022, and some 2.25% point for the UK.