NOTES TO THE PARENT COMPANY'S BALANCE SHEET

17. Derivative instruments
2016 2016 2016 2015 2016 2015
Positive
fair value
Negative
fair value
Fair
value net
Fair
value net
Nominal
value
Nominal
value
Interest rate derivatives 4 890.8 -13 434.1 -8 543.3 -8 907.7 70 936.9 71 764.0
matured in 2016 0.0 0.0 0.0 0.0 0.0 0.0
matures in 2017 0.0 -251.2 -251.2 -366.2 5 234.2 5 441.0
matures in 2018 0.0 -753.5 -753.5 -1 098.7 15 702.7 16 323.0
matuers in 2019 1 620.5 -1 620.5 0.0 0.0 0.0 0.0
matures in 2020 2 681.5 -2 681.5 0.0 0.0 0.0 0.0
matures in >2020 588.8 -8 127.4 -7 538.6 -7 442.7 50 000.0 50 000.0
of which defined as cash flow hedging instruments 0.0 -8 543.3 -8 543.3 -8 907.7 70 936.9 71 764.0
Foreign exhange derivatives 304.2 -363.4 -59.2 -74.0 30 398.2 40 969.0
of which defined as net investment hedging instruments - - - - - -
Commodity derivatives 1 135.1 -1 135.1 0.0 0.0 0.0 0.0
matured in 2016 0.0 0.0 0.0 0.0 0.0 0.0
matures in 2017 622.4 -622.4 0.0 0.0 0.0 0.0
matures in 2018 282.6 -282.6 0.0 0.0 0.0 0.0
matuers in 2019 212.8 -212.8 0.0 0.0 0.0 0.0
matures in 2020 17.3 -17.3 0.0 0.0 0.0 0.0
of which defined as cash flow hedging instruments 0.0 0.0 0.0 0.0 0.0 0.0
Nominal values of external derivatives that are eliminated due to intercompany derivatives are netted to zero in the table above. The nominal values are EUR 13 162 (16 745) thousand foreign exchange derivatives, EUR 7 271 (8 083) thousand commodity derivatives, EUR 55 937 (56 764) thousand interest rate derivatives.
Fair value hierarchy
31 Dec. 2016 Level 1 Level 2 Level 3
Derivatives, positive fair value
Interest rate swaps 4 890.8 - 4 890.8 -
Foreign exchange derivatives 304.2 - 304.2 -
Commodity derivatives 1 135.1 - 1 135.1 -
Total 6 330.1 - 6 330.1 -
Derivatives, negative fair value
Interest rate swaps -13 434.1 - -13 434.1 -
Foreign exchange derivatives -363.4 - -363.4 -
Commodity derivatives -1 135.1 - -1 135.1 -
Total -14 932.6 - -14 932.6 -
31 Dec. 2015 Level 1 Level 2 Level 3
Derivatives, positive fair value
Interest rate swaps 5 132.9 - 5 132.9 -
Foreign exchange derivatives 296.0 - 296.0 -
Commodity derivatives 2 900.9 - 2 900.9 -
Total 8 329.8 - 8 329.8 -
Derivatives, negative fair value
Interest rate swaps -14 040.6 - -14 040.6 -
Foreign exchange derivatives -370.0 - -370.0 -
Commodity derivatives -2 900.9 - -2 900.9 -
Total -17 311.5 - -17 311.5 -
The fair values of Level 1 instruments are based on prices quoted on the market. The fair values of Level 2 instruments are to a significant degree based on inputs other than the quoted prices included in Level 1 but nonetheless observable for the relevant asset or liability either directly or indirectly (derived from prices). In determining the fair value of these instruments, the company uses generally accepted measurement models, the inputs of which are nonetheless to a considerable degree based on observable market information. The fair values of Level 3 instruments are based on inputs which are not based on observable market information; rather to a significant degree on management estimates and measurement models generally acceptable for their use.