I have been asked to reply
The specific information requested is not collected. However, the following table shows the number of finished admission episodes of young people under the age of 18, for the most commonly abused illegal drugs and volatile substances, for the last five years.
Illegal drugs Volatile substances 2001-02 1,345 633 2002-03 1,367 630 2003-04 1,336 692 2004-05 1,138 903 2005-06 1,253 1,005 Source: Hospital Episode Statistics, The Information Centre for health and social care.