27. Other provisions

T 081
             
  Non-current Current Total
             
in € thousand 9/30/2016 9/30/2015 9/30/2016 9/30/2015 9/30/2016 9/30/2015
             
Personnel provisions 46,486 42,231 22,755 22,965 69,241 65,196
Expected losses on onerous contracts 0 0 3,452 3,201 3,452 3,201
Environmental provisions 15,885 15,864 2,225 2,856 18,110 18,719
Sundry provisions 1,667 1,657 3,878 5,727 5,545 7,384
 
  64,038 59,752 32,310 34,748 96,348 94,500

The individual classes of provisions developed as follows during the fiscal year reported:

T 082
 
in € thousand Balance per
10/1/2015
Used Released Allocated Interest effect Exchange rate
difference
Balance per
9/30/2016
               
Personnel provisions 65,196 (18,386) (98) 22,047 517 (35) 69,241
Expected losses on onerous contracts 3,201 (2,950) 0 3,201 0 0 3,452
Environmental provisions 18,719 (1,349) 0 268 470 2 18,110
Sundry provisions 7,384 (4,513) (404) 3,107 0 (29) 5,545
 
  94,500 (27,198) (502) 28,623 987 (62) 96,348

The personnel provisions consisted mainly of obligations to employees relating to anniversary bonuses, temporary assistance benefits and those deriving from early retirement agreements. Provisions for environmental risks primarily related to clean-up measures at the Lünen site as well as in Buffalo, USA and Zutphen, Netherlands. The provisions had terms of up to 24 years. The probable costs were determined taking into account past experience in comparable cases, existing appraisals and the clean-up methods that will probably be used on the basis of present knowledge.