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Sony's PlayStation 4 has been a huge successSony

Sony has revealed that lifetime, worldwide sales of the PlayStation 4 passed 22.3 million as of the end of March, with 14.8 million units being sold in the financial year ending 31 March.

The news comes as part of Sony's full-year financial report, which has revealed booming business, with an operating profit of $401m (£260m) compared with a loss of $78m this time in 2014.

The huge success of the PS4 has also boosted the company's Game and Network services division to make it Sony's biggest earner, bringing in $11.5bn between April 2014 and April 2015 and with raw revenues jumping 33% year-on-year (a 25% increase on a constant currency basis).

Sales are expected to remain steady and high over the next 12 months, with Sony forecasting an additional 16 million units sold.

While not bad enough news to derail the financial report's sunny outlook for the company, sales of PS Vitas and PSPs combined have dropped again from 4.1 million to 3.3 million.

If Sony can break 25 million sales in the first two months of this financial year, expect to hear a lot of fanfare come its E3 press conference on 15 June.