22. Investment securities available for sale

31.12.201331.12.2012
Debt securities available for sale, gross13,870,73312,049,073
issued by the State Treasury8,818,5007,902,479
Treasury bonds PLN8,616,5177,697,426
Treasury bonds USD181,823125,253
Treasury bonds UAH20,16079,800
issued by local government bodies, municipal bonds PLN3,440,7532,780,212
issued by non-financial institutions1,000,5491,315,490
corporate bonds PLN1,000,5491,315,490
issued by banks, corporate bonds610,93150,892
corporate bonds PLN558,81450,892
corporate bonds UAH52,117-
Impairment allowances of debt securities available for sale(3,296)(5,536)
corporate bonds PLN(3,296)(5,536)
Total net debt securities available for sale13,867,43712,043,537
Equity securities available for sale, gross235,800179,300
Equity securities not admitted to public trading161,514129,653
Equity securities admitted to public trading74,28649,647
Impairment allowances of equity securities available for sale(30,159)(17,707)
Total net equity securities available for sale205,641161,593
Total net investment securities available for sale14,073,07812,205,130

Debt securities by nominal value31.12.201331.12.2012
Treasury bonds PLN8,499,6087,461,361
municipal bonds PLN3,361,8532,740,590
corporate bonds PLN1,579,3431,514,084
Treasury bonds UAH21,14781,699
Treasury bonds USD182,768124,433
corporate bonds UAH50,329-
The average yield on debt securities3.35%3.24%

Change in investment securities available for sale20132012
Balance at the beginning of the period12,205,13014,393,276
Currency translation differences(7,575)(21,591)
Increases45,177,26738,667,521
of which change in impairment allowance (Note 10)-2,680
Decreases(43,222,205)(40,907,752)
of which change in impairment allowance (Note 10)10,212-
Changes in the fair value recognised in other comprehensive income (Note 8)(79,539)73,676
Balance at the end of the period14,073,07812,205,130

Details on risk related to investment securities available for sale has been described in Note 49 ‘Credit risk management’.

Investment debt securities available for sale by carrying amount - maturities

As at 31 December 2013up to 1 month1 - 3 months3 months - 1 year1 - 5 yearsover 5 yearsTotal
Debt securities
issued by the State Treasury3,56317,658345,8796,939,9011,511,4998,818,500
issued by local government bodies-4,523127,574999,7502,308,9063,440,753
issued by non-financial institutions68,08516,56662,536685,456164,610997,253
issued by banks19,54398931,585509,28449,530610,931
Total91,19139,736567,5749,134,3914,034,54513,867,437

As at 31 December 2012up to 1 month1 - 3 months3 months - 1 year1 - 5 yearsover 5 yearsTotal
Debt securities
issued by the State Treasury5,79258,410203,1205,608,7192,026,4387,902,479
issued by local government bodies15,0571,207179,792916,7631,667,3932,780,212
issued by non-financial institutions313,74732,310108,514669,685185,6981,309,954
issued by banks----50,89250,892
Total334,59691,927491,4267,195,1673,930,42112,043,537

As at 31 December 2013 and as at 31 December 2012 the Group did not have transferred financial assets, which are derecognised from the financial statements, for which the Group would continue involvement in those assets.

Bank Deposit Guarantee Fund

The Parent Company of the Group contributes to the Bank Deposit Guarantee Fund in accordance with Article 25 of the Act on the Bank Guarantee Fund (Bankowy Fundusz Gwarancyjny) dated 14 December 1994 (Journal of Laws 2009, No. 84, item 711 with subsequent amendments).

31.12.201331.12.2012
Value of the fund800,545798,974
Nominal value of the pledge830,000850,000
Type of the pledgeTreasury
bonds
Treasury
bonds
Maturity of the pledge25.01.201525.01.2015
Carrying amount of the pledged asset839,777873,707

The Bank’s contribution to the Bank Guarantee Fund is secured by Treasury bonds with maturities sufficient to secure their carrying amount over the period defined by the Act. The Fund is increased or decreased on 1 July of each year, in proportion to the amount providing the basis for calculation of mandatory reserve deposits. Those funds are treated as assets held as collateral for own liabilities.