IUQASOIA

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Date Quarterly average Sterling overnight index average (SONIA) lending rate
[a]
IUQASOIA
31 Mar 10 0.4647
30 Jun 10 0.4814
30 Sep 10 0.494
31 Dec 10 0.5113
31 Mar 11 0.5102
30 Jun 11 0.5258
30 Sep 11 0.5367
31 Dec 11 0.5304
31 Mar 12 0.5015
30 Jun 12 0.4856
30 Sep 12 0.4479
31 Dec 12 0.43
31 Mar 13 0.4233
30 Jun 13 0.4329
30 Sep 13 0.429
31 Dec 13 0.4278
31 Mar 14 0.4216
30 Jun 14 0.4235
30 Sep 14 0.4278
31 Dec 14 0.4304
31 Mar 15 0.4479
30 Jun 15 0.4585
30 Sep 15 0.456
31 Dec 15 0.4611
31 Mar 16 0.4654
30 Jun 16 0.4631
30 Sep 16 0.3038
31 Dec 16 0.2118
31 Mar 17 0.2112
30 Jun 17 0.2121
30 Sep 17 0.2126
31 Dec 17 0.3699
31 Mar 18 0.4634
30 Jun 18 0.455
30 Sep 18 0.6129
31 Dec 18 0.7018
31 Mar 19 0.7055
30 Jun 19 0.7087
30 Sep 19 0.7096

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Notes:

[a] On 23 April 2018, SONIA was reformed. For further information on the changes made, see the `Background on SONIA reform' section of the following page: www.bankofengland.co.uk/markets/sonia-benchmark