Notes to the financial statements For the year ended 31 December 2009


15. Retirements benefits (continued) Principal actuarial assumptions at the balance sheet date (expressed as weighted averages):


2009 %


Discount rate at the end of the year


Expected return on plan assets at the end of the year Future salary increases Future pension increases Inflation assumption


Amounts for the current and previous four periods are as follows: 2009


Defined benefit obligation Plan assets


(Deficit)


Experience adjustments on plan liabilities Experience adjustments on plan assets


£’000 8,422


5,519


(2,903) (18)


380


2008 £’000


5,561 4,621


(940) (15)


(1,601)


2007 £’000


6,383 5,471


(912) 5


(145)


6% 7% 5% 3% 3%


2006 £’000


6,197 5,064


(1,133) (286)


140


2008 %


7% 7% 4% 2% 3%


2005 £’000


5,310 4,374


(936) (15)


412


Arthritis Care Annual Report 2009 | 39


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