19 May 2008
            
            Shares are included into the Non-Listed Securities Register
            
            2008
            
            40
        
            
        
            
            8 April 2009
            
            Shares are transferred to Quotation List B on MICEX
            
            2009
            
            60
        
            
        
            
            10 August 2011
            
            Shares are transferred to Quotation List A2 on MICEX
            
            2011
            
            70
        
            
        
            
            22 October 2012
            
            Shares are transferred to Quotation List A1 on MICEX
            
            2012
            
            80
        
            
        
            
            9 June 2014
            
            Shares are included into the First (Top) Tier of the List of Securities on Moscow Exchange 
            
            2014
            
            92
        
            
        
            
            31 January 2017
            
            Shares are transferred to the Third Tier of the List of Securities on Moscow Exchange
            
            2017
            
            70
        
            
        
            
            1 August 2017
            
            Shares are transferred to the Second Tier of the List of Securities on Moscow Exchange
            
            2017
            
            80