Luis,

those figures came from the UK DTI report linked to above. I didn't verify them though.

I seem to recall it mention 12 shipyards capable of making them. I must admit the figure seemed on the high side given the size of these things. In addition vessel capacity is increasing reducing overall required numbers. Build costs have also increased.

Nick.

The DTI report talk of orders, not ships built...

Even with 12 shipyards that would meant more than 5 ships built every year per shipyard. I don't know if this is possible.