National Insurance 47. Mr. Wilshire To ask the Secretary of State for Social Security what is the latest estimate of the number of standard rate taxpayers who would be affected by the abolition of the upper earnings limit on national insurance contributions. 48. Mr. Hannam To ask the Secretary of State for Social Security what is the latest estimate of the numbers of standard rate taxpayers who would be affected by the abolition of the upper earnings limit on national insurance contributions. Mrs. Gillian Shephard I refer my hon. Friends to the reply given to my hon. Friend the Member for Taunton (Mr. Nicholson) earlier today.