I'm wondering if there is any recent (say within the last decade) polling which would suggest that citizens of the United Kingdom hold a strong opinion one way or another on the subject of a codified constitution for the United Kingdom.
I'm particularly interested in polls which would indicate an opinion either way absent other changes to the structure/constitutional convention of the United Kingdom (in essence a replacement of the UK's "Constitutional Convention" with a written and binding document containing, broadly, the same rights/procedures, subject to obvious changes to the powers of parliament).