2017 | 2016 | 2015 | ||||||
Wages and salaries (i) | 132,025 | 117,423 | 104,216 | |||||
Social security costs | 30,558 | 28,849 | 23,111 | |||||
Equity-settled share-based compensation | 5,552 | 4,796 | 4,396 | |||||
168,135 | 151,068 | 131,723 | ||||||
Number of employees | 7,790 | 8,326 | 8,089 | |||||
(i) | Includes US$ 41,172, US$ 28,475 and US$ 16,708, capitalized in Property, Plant and Equipment for the years 2017, 2016 and 2015, respectively. |