25. PERSONNEL COSTS

Personnel costs for the years ended December 31, 2013 and 2012 comprise of the following:

RUB millions

Year ended December 31, 2013

Year ended December 31, 2012

Wages and salaries

47,001

43,524

Stock appreciation rights (SAR)

547

1,112

Other costs

5,487

5,239

TOTAL EMPLOYEE COSTS

53,035

49,875

Social security contributions (social taxes)

10,633

9,279

TOTAL EMPLOYEE COSTS (WITH SOCIAL TAXES)

63,668

59,154