14Other current and accrued liabilities
| 
       millions of CHF  | 
    
       
  | 
    
       2022  | 
    
       
  | 
    
       2021  | 
  
| 
       Liability related to the purchase of treasury shares  | 
    
       
  | 
    
       94.3  | 
    
       
  | 
    
       98.1  | 
  
| 
       Outstanding dividend payments  | 
    
       
  | 
    
       239.2  | 
    
       
  | 
    
       201.1  | 
  
| 
       Taxes (VAT, withholding tax)  | 
    
       
  | 
    
       29.9  | 
    
       
  | 
    
       34.3  | 
  
| 
       Derivative financial instruments  | 
    
       
  | 
    
       13.8  | 
    
       
  | 
    
       6.7  | 
  
| 
       Notes payable  | 
    
       
  | 
    
       18.6  | 
    
       
  | 
    
       26.7  | 
  
| 
       Contingent consideration  | 
    
       
  | 
    
       2.0  | 
    
       
  | 
    
       4.0  | 
  
| 
       Other current liabilities  | 
    
       
  | 
    
       24.1  | 
    
       
  | 
    
       25.1  | 
  
| 
       Total other current liabilities as of June 30 / December 31  | 
    
       
  | 
    
       421.8  | 
    
       
  | 
    
       395.9  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Contract-related costs  | 
    
       
  | 
    
       156.9  | 
    
       
  | 
    
       168.3  | 
  
| 
       Salaries, wages and bonuses  | 
    
       
  | 
    
       85.5  | 
    
       
  | 
    
       116.8  | 
  
| 
       Vacation and overtime claims  | 
    
       
  | 
    
       27.1  | 
    
       
  | 
    
       24.0  | 
  
| 
       Other accrued liabilities  | 
    
       
  | 
    
       141.9  | 
    
       
  | 
    
       123.1  | 
  
| 
       Total accrued liabilities as of June 30 / December 31  | 
    
       
  | 
    
       411.4  | 
    
       
  | 
    
       432.3  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Total other current and accrued liabilities as of June 30 / December 31  | 
    
       
  | 
    
       833.3  | 
    
       
  | 
    
       828.1  | 
  
The outstanding dividend payments amounted to CHF 239.2 million (December 31, 2021: CHF 201.1 million), which is an increase of CHF 38.1 million. The details regarding the dividends are explained in note 11.