The information requested falls within the responsibility of the UK Statistics Authority. I have asked the authority to reply.Letter from Colin Mowl, dated 11 June 2008:"The National Statistician has been asked to reply to your recent question asking if a copy of table 14A from the Effects of Taxes and Benefits on Household Income, broken down by the age of the household reference person in five year bands from the ages of 20 to 80 rather than by household income deciles for the current year, for (a) 2000, (b) 1995 and (c) 1990 can be placed in the House of Commons Library. I am replying in her absence. (208787)""The table requested is provided here for the years 2005/06, 2000/01, 1995/96. Comparable data for 1990/91 are not available. These tables will also be provided to the House of Commons Library.""Average incomes, taxes and benefits have been presented with households grouped in five year bands according to age of the household reference person (HRP). To ensure that all households are classified, an age group for households where the HRP is aged 80 or over has been included. Households where the HRP is under 20 (of which there are relatively few) are classified in the same group as those where the HRP is aged 20 to 24.""The concept of HRP was adopted on all government surveys from 2001/02, replacing head of household. Therefore in the tables for the years 2000/01 and 1995/96 head of household is used instead of HRP."