In the UK, more than a million people have now received both doses of the Covid-19 vaccine.
According to the latest figures from health authorities in the four countries, a total of 1,034,068 seconds had been administered as of March 4.
This means the equivalent of 2% of adults in the UK are now fully vaccinated against coronavirus.
729,265 people received both doses in England, 154,819 in Wales, 108,197 in Scotland and 41,787 in Northern Ireland.
The accumulated number of second doses in the UK on February 3rd was half a million.
The pace picked up in the second half of last month, exceeding 800,000 on February 28 and 900,000 on March 3.
The seven-day moving average of the daily second doses was 4,253 on February 15, but had risen to 27,356 by February 28.
Vaccine Minister Nadhim Zahawi said March was a “very big month” for vaccinations.
Speaking to the BBC on Monday, he said: “You saw the number of second cans go up – yesterday I believe we were at 800,000 second cans.
“And in March you will find that number continues to grow, because obviously those who got the first dose in January will get their second dose.
“The NHS has all the protocols in place to achieve this and of course continue to give the first dose.
“March will be a very big month for us. We’ll probably be double what we were in the last 10 or 11 weeks in the next 10 weeks. “