7. Personnel expenses

Cost of sales, selling, general and administrative expenses and research and development expenses included personnel expenses of € 4,880 million and
€ 4,332 million in 2009 and 2008, respectively.

Personnel expenses comprised the following:

in million € 2009 2008
Wages and salaries 3,882 3,508
Social security contributions, cost of retirement pensions and social assistance 998 824
thereof retirement pensions 120 99
Personnel expenses 4,880 4,332

in million € 2009 2008
Wages and salaries 3,882 3,508
Social security contributions, cost of retirement pensions and social assistance 998 824
thereof retirement pensions 120 99
Personnel expenses 4,880 4,332

Fresenius Group’s annual average number of employees by function is shown below:

  2009 2008
Production and service 102,003 95,723
Administration 16,131 13,858
Sales and marketing 8,397 7,931
Research and development 1,372 1,156
Total employees (per capita) 127,903 118,668

  2009 2008
Production and service 102,003 95,723
Administration 16,131 13,858
Sales and marketing 8,397 7,931
Research and development 1,372 1,156
Total employees (per capita) 127,903 118,668

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