The key actuarial assumptions used to determine defined benefit obligations were as follows as of December 31, 2017 and 2016:
| December 31, 2017 |
December 31, 2016 |
|||||||
|
Discount rate |
||||||||
|
Russian entities |
7.6 | % | 8.5 | % | ||||
|
German entities |
1.80 | % | 1.50 | % | ||||
|
Ukrainian entity |
10.10 | % | 11.10 | % | ||||
|
Austrian entities |
1.50 | % | 1.50 | % | ||||
|
Inflation rates |
||||||||
|
Russian entities |
4.40 | % | 5.00 | % | ||||
|
Ukrainian entity |
8.60 | % | 8.60 | % | ||||
|
Rate of compensation increase |
||||||||
|
Russian entities |
5.40 | % | 6.00 | % | ||||
|
German entities |
4.00 | % | 4.00 | % | ||||
|
Ukrainian entity |
11.60 | % | 11.60 | % | ||||
|
Austrian entities |
2.25 | % | 2.25 | % | ||||