Notes to the consolidated financial statements of Aegon N.V.  Note 4 196 Impaired financial assets Carrying amount  2013 Carrying amount  2012 Shares 203 347 Debt securities - carried at fair value 1,390 1,352 Mortgage loans 728 767 Private Loans 11 2 Other loans 4 4 Other financial assets - carried at fair value 16 23 At December 31 2,352 2,495 Objective evidence of impairment of an investment in an equity instrument classified as available-for-sale includes information about  significant changes with an adverse effect that have taken place in the technological, market, economic or legal environment in which  the issuer operates, and indicates that the cost of the investment in the equity instrument may not be recovered. A significant or  prolonged decline in the fair value of an investment in an equity instrument below its cost is also objective evidence of impairment.  Significant or prolonged decline is generally defined within Aegon as an unrealized loss position for more than six months or a fair  value of less than 80% of the cost price of the investment. Additionally, as part of an ongoing process, the equity analysts actively  monitor earnings releases, company fundamentals, new developments and industry trends for any signs of possible impairment. These factors typically require significant management judgment. The impairment review process has resulted in EUR 3 million of  impairment charges for the period ended December 31, 2013 (2012: EUR 1 million) for Aegon Americas, Aegon the Netherlands and  Aegon UK. As of December 31, 2013, there are EUR 309 million of gross unrealized gains and EUR 11 million of gross unrealized losses in  the equity portfolio of Aegon (2012: EUR 262 million of gross unrealized gains and EUR 18 million of gross unrealized losses).  There are no securities held by Aegon with an unrealized loss above EUR 5 million. The table below represents the unrealized gains  and losses on share positions held by Aegon Americas, Aegon the Netherlands and Aegon UK. The composition of shares by industry sector in an unrealized loss position held by Aegon Americas, Aegon the Netherlands and  Aegon UK at December 31, 2013 and December 31, 2012 is presented in the table below. Annual Report 2013 2013 2012 Unrealized losses on shares Carrying value of  instruments with  unrealized losses Gross  unrealized losses Carrying value of  instruments with  unrealized losses Gross  unrealized losses Consumer 10 - 17 - Financials 60 (11) 42 (17) Funds 8 - 7 (1) Other 8 - 15 - Total 86 (11) 81 (18) Cost basis Carrying value Net unrealized  gains / (losses) Carrying value  of securities with gross  unrealized gains Gross  unrealized  gains Carrying value  of securities with gross  unrealized losses Gross  unrealized  losses December 31, 2013 Shares 477 775 298 689 309 86 (11) December 31, 2012 Shares 568 812 244 731 262 81 (18) Equity instruments classified as available-for-sale