You asked
The results of the last census show that the number of cars and vans on UK roads increased from 23.9 to 27.3 million from 2001 to 2011. Does the ONS have a figure for the increase, as I expect, of lorries on UK roads over this period?
We said
Thank you for your request. Following a search of our paper and electronic records I can confirm that the Office for National Statistics does not hold the information requested.
The Department for Transport (DfT) have produced the following publication which might be of particular use - Vehicle Licensing Statistics in Great Britain AJ14.
Contact details for the relevant department within DfT are as follows:
Email: vehicles.stats@dft.gsi.gov.uk Public enquiries: 020 7944 3077