23. Wages, salaries, other benefits and payroll taxes


2013 2012 2011
Salary expenses 67,454 67,310 63,716
Share–based remuneration 10 588
Social taxes 18,026 17,652 17,836
Loss/(gain) for pension plans 1,218 396 (4,349)
Other personnel costs 4,304 3,447 3,010
Total wages, salaries, other benefits and payroll taxes 91,002 88,815 80,801

Gain on pension plans in 2011 and 2012 occurred due to curtailments effects of some of the Group’s defined benefits schemes (refer to Note 19).