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| Date | End month level of yield from British Government Stock, 20 year Nominal Par Yield [a] IUMLNPY |
|---|---|
| 31 Jan 20 | 0.9069 |
| 29 Feb 20 | 0.8007 |
| 31 Mar 20 | 0.7771 |
| 30 Apr 20 | 0.6274 |
| 31 May 20 | 0.5559 |
| 30 Jun 20 | 0.615 |
| 31 Jul 20 | 0.5497 |
| 31 Aug 20 | 0.8456 |
| 30 Sep 20 | 0.7257 |
| 31 Oct 20 | 0.7366 |
| 30 Nov 20 | 0.7901 |
| 31 Dec 20 | 0.6605 |
| 31 Jan 21 | 0.7807 |
| 28 Feb 21 | 1.3324 |
| 31 Mar 21 | 1.3608 |
| 30 Apr 21 | 1.3222 |
| 31 May 21 | 1.29 |
| 30 Jun 21 | 1.2297 |
| 31 Jul 21 | 0.9939 |
| 31 Aug 21 | 1.0656 |
| 30 Sep 21 | 1.3801 |
| 31 Oct 21 | 1.1782 |
| 30 Nov 21 | 0.9843 |
| 31 Dec 21 | 1.1759 |
| 31 Jan 22 | 1.4995 |
| 28 Feb 22 | 1.6375 |
| 31 Mar 22 | 1.7764 |
| 30 Apr 22 | 2.0875 |
| 31 May 22 | 2.4141 |
| 30 Jun 22 | 2.6182 |
| 31 Jul 22 | 2.3351 |
| 31 Aug 22 | 3.0472 |
| 30 Sep 22 | 3.9776 |
| 31 Oct 22 | 3.7249 |
| 30 Nov 22 | 3.4308 |
| 31 Dec 22 | 3.9284 |
| 31 Jan 23 | 3.6683 |
| 28 Feb 23 | 3.9973 |
| 31 Mar 23 | 3.7075 |
| 30 Apr 23 | 3.9153 |
| 31 May 23 | 4.3117 |
| 30 Jun 23 | 4.3187 |
| 31 Jul 23 | 4.2986 |
| 31 Aug 23 | 4.4257 |
| 30 Sep 23 | 4.632 |
| 31 Oct 23 | 4.7322 |
| 30 Nov 23 | 4.4284 |
| 31 Dec 23 | 3.8977 |
| 31 Jan 24 | 4.1925 |
| 29 Feb 24 | 4.3262 |
| 31 Mar 24 | 4.1783 |
| 30 Apr 24 | 4.5507 |
| 31 May 24 | 4.5047 |
| 30 Jun 24 | 4.4093 |
| 31 Jul 24 | 4.2697 |
| 31 Aug 24 | 4.25 |
| 30 Sep 24 | 4.3017 |
| 31 Oct 24 | 4.7229 |
| 30 Nov 24 | 4.4827 |
| 31 Dec 24 | 4.8734 |
| 31 Jan 25 | 4.8171 |
| 28 Feb 25 | 4.7894 |
| 31 Mar 25 | 4.9609 |
| 30 Apr 25 | 4.8559 |
| 31 May 25 | 5.0301 |
| 30 Jun 25 | 5.0102 |
| 31 Jul 25 | 5.0622 |
| 31 Aug 25 | 5.2583 |
| 30 Sep 25 | 5.2234 |
| 31 Oct 25 | 4.9107 |
| 30 Nov 25 | 4.9566 |
| 31 Dec 25 | 5.0031 |
| 31 Jan 26 | 5.0685 |
| 28 Feb 26 | 4.7913 |
Notes:
[a] Calculated using the Variable Roughness Penalty (VRP) model.