First time buyers under 25 have slumped to their lowest level for at least 20 years according to figures from the Council of Mortgage Lenders (CML). There were about 70,000 first time buyers aged between 18 and 24 in 2003, down from 87,000 in 2000, 117,000 in 1994 and a high of 201,000 in 1988. The number of first time …