41. Analysis of cash and cash equivalents
| Group | Company | |||||
| 2006 £m |
2005 £m |
2004 £m |
2006 £m |
2005 £m |
2004 £m |
|
| At 1 January | ||||||
| – cash | 25,476 | 23,723 | 20,937 | 30 | 60 | 19 |
| – cash equivalents | 27,073 | 26,298 | 27,184 | 1,096 | 249 | 64 |
| Net cash inflow | 19,102 | 2,528 | 1,900 | (469) | 817 | 226 |
| At 31 December | 71,651 | 52,549 | 50,021 | 657 | 1,126 | 309 |
| Comprising: | ||||||
| Cash and balances at central banks | 5,752 | 4,456 | 4,035 | — | — | — |
| Treasury bills and debt securities | 1,596 | 998 | 3,016 | — | — | — |
| Loans and advances to banks | 64,303 | 47,095 | 42,970 | 657 | 1,126 | 309 |
| Cash and cash equivalents | 71,651 | 52,549 | 50,021 | 657 | 1,126 | 309 |
Certain subsidiary undertakings are required to maintain balances with the Bank of England which, at 31 December 2006, amounted to £369 million (2005 – £303 million). Certain subsidiary undertakings are required by law to maintain reserve balances with the Federal Reserve Bank in the US. Such reserve balances amounted to US$13 million at 31 December 2006 (2005 – US$156 million).
