measures of other companies. We have no single external customer from which we receive 10% or more of our revenues. (a)EBIT includes a $22.9 million reserve for potential liabilities to Mr. Wittig and Mr. Lake and a $22.6 million charge recorded for marking to market changes in the fair value of the call option of the putable/callable notes. (b)EBIT includes $338.1 million impairment of customer accounts and $140.0 million impairment of goodwill. (c)EBIT includes investment earnings of $65.6 million. (d)Sales and goodwill are from a wholly owned subsidiary of Westar Industries providing paging services, which was sold during the first quarter of 2002. (e)EBIT includes earnings on investments of $38.4 million and loss on extinguishment of debt of $17.3 million. (f)EBIT includes the gain on the sale of our investment in a gas compression company of $91.1 million and the gain on the sale of other marketable securities of $24.9 million.		Geographic Information Our sales and property, plant and equipment by geographic area are as follows: