Our share of world trade has been falling for years under successive governments to the extent that the purchasing power of our currency has roughly halved since 1945.

In the first place, the pension being offered was roughly halved in value.

Because the air is cooled at all speeds, the jet can be built of light alloys and the weight is roughly halved.

At the same time, subway service here was roughly halved by a renewed walkout of transport workers after a breakdown of wage negotiations on Monday.

MSQ Partners, a company founded by Reid and Parry, has bought the agencies in a deal that is understood to have roughly halved the £21m debt load.

To protect lakes, the tonnage of sulfur emissions must be roughly halved, and nitrogen oxides also reduced, at a cost of about $5 billion a year.

Nevertheless, the population was roughly halved, and Frohnhofen could now hardly even be called a village.

The trade gap with Taiwan fell to $998 million, from $1.76 billion the month before, and the gaps with Hong Kong and South Korea were roughly halved.

In addition, the spread between buying and selling prices quoted by market makers has roughly halved.

Carbon output must be roughly halved by mid-century, compared with 1990.