pre_text: Personnel expenses for employees were as follows: Personnel expenses are included in cost of sales and in operating expenses in the consolidated statement of profit or loss.
table: December 31,
table: 2018 2019
table: Wages and salaries 158,371 191,459
table: Social security 14,802 17,214
table: Pension expenses 6,937 8,408
table: Share-based payment expenses 8,215 10,538
table: Restructuring expenses 178 108
table: Total 188,503 227,727
question: Analyse this data from a financial earnings document. What is the change in total personnel expenses from 2018 to 2019?