| Chiffre d'affaires | — | — | — | — | — | £898 353 | £57 883 | £211 146 | £71 319 |
| Bénéfice / (perte) | £2 802 249 | £2 053 516 | £1 428 487 | £1 590 437 | £5 344 641 | £-291 593 | £2 098 480 | £2 296 713 | £-35 447 |
| Marge brute | — | — | — | — | — | £2 548 133 | — | — | — |
| Bénéfice d'exploitation | — | — | — | — | — | £404 292 | — | — | — |
| Autres revenus | — | — | — | — | — | £4 144 | £103 | £1 761 | £9 581 |
| Total des actifs | — | £159 781 | £5 011 | £5 011 | £11 | £920 | £100 920 | £100 920 | £100 920 |
| Net Assets Liabilities | — | £4 281 609 | — | £4 588 612 | £4 796 649 | £7 764 290 | £3 817 628 | £3 646 108 | £3 342 821 |
| Equity | — | £5 200 125 | £4 588 612 | £4 796 649 | £7 764 290 | £3 817 628 | £3 760 342 | £3 505 164 | £70 797 |
| Current Assets | — | £5 897 890 | £7 327 851 | £6 518 219 | £8 536 491 | £12 697 803 | £11 707 488 | £9 597 526 | £9 268 556 |
| Net Current Assets Liabilities | — | £3 703 437 | £4 476 749 | £3 948 276 | £4 250 493 | — | — | — | £2 641 340 |
| Total Assets Less Current Liabilities | — | £4 347 468 | — | £4 644 019 | £4 872 085 | — | — | — | £3 508 522 |
| Cash Bank On Hand | — | £1 835 172 | £4 102 651 | £2 240 153 | £4 657 869 | £8 992 681 | £5 449 041 | £3 606 494 | £4 146 082 |
| Debtors | — | £3 855 452 | £2 587 934 | £4 210 800 | £3 765 037 | £3 611 000 | £6 126 285 | £5 905 070 | £5 036 746 |
| Other Debtors | — | £207 266 | £637 266 | £67 266 | £113 585 | £94 122 | £132 162 | £85 962 | £85 728 |
| Creditors | — | £2 194 453 | £2 851 102 | £2 569 943 | £4 285 998 | £5 327 845 | £8 272 265 | £6 832 796 | £6 627 216 |
| Trade Creditors Trade Payables | — | £64 081 | £230 458 | £162 310 | £323 191 | £309 288 | £578 620 | £706 225 | £496 197 |
| Other Creditors | — | £80 952 | £100 282 | £85 283 | £154 688 | £273 100 | £612 923 | £57 634 | £49 596 |
| Investments Fixed Assets | — | £265 814 | £144 463 | £131 207 | £43 | £952 | £100 952 | £100 952 | £100 952 |
| Average Number Employees During Period | — | — | — | 0 | 169 | 200 | 246 | £3 | £3 |
| Frais administratifs | — | — | — | — | — | £2 214 198 | £2 419 839 | £3 392 678 | £10 441 707 |
| Accrued Liabilities Deferred Income | — | £936 979 | £1 221 525 | £1 102 189 | £2 037 283 | £1 987 580 | £4 071 509 | £3 685 296 | £3 762 694 |
| Accumulated Depreciation Impairment Property Plant Equipment | — | £1 321 536 | £1 563 933 | £1 611 279 | £2 002 456 | £2 410 920 | £2 851 985 | £2 962 533 | £3 401 900 |
| Additions Other Than Through Business Combinations Property Plant Equipment | — | £621 033 | £271 066 | £467 881 | £211 934 | £277 931 | £1 199 886 | £280 756 | £196 027 |
| Cash Cash Equivalents | — | — | — | — | — | £9 144 083 | £5 608 595 | £3 752 379 | £4 323 890 |
| Corporation Tax Payable | — | £12 031 | £12 031 | £100 049 | £0 | £0 | £0 | £0 | £0 |
| Corporation Tax Recoverable | — | £1 256 521 | — | £42 905 | £42 905 | £270 690 | — | — | — |
| Cost Sales | — | — | — | — | — | £16 826 357 | £24 515 355 | £31 611 782 | £25 963 452 |
| Current Tax For Period | — | — | — | — | — | £-265 083 | £6 363 | £6 351 | £16 854 |
| Deferred Tax Expense Credit From Unrecognised Tax Loss Or Credit | — | — | — | — | — | £-26 510 | £-18 606 | £187 682 | £-52 301 |
| Deferred Tax Expense Credit Relating To Origination Reversal Timing Differences | — | — | — | — | — | £-26 510 | £-18 606 | £187 682 | £-52 301 |
| Dividend Income | — | — | — | — | — | £0 | £80 790 | £125 094 | £104 013 |
| Dividend Income From Group Undertakings | — | — | — | — | — | £0 | £-80 790 | £-125 094 | £-104 013 |
| Dividends Paid Classified As Financing Activities | £-1 126 000 | £-1 135 000 | £-2 040 000 | £-1 382 400 | £-2 377 000 | £-6 275 000 | £-2 270 000 | £-2 600 000 | £-1 750 000 |
| Dividends Paid To Owners Parent Classified As Financing Activities | — | — | — | — | — | — | £-6 275 000 | £-2 270 000 | £-2 600 000 |
| Equity Securities Held | — | £159 781 | £5 011 | £5 011 | £11 | £920 | £100 920 | £100 920 | £100 920 |
| Fixed Assets | — | £644 031 | — | £695 743 | £621 592 | £443 258 | £412 725 | £1 099 380 | £867 182 |
| Further Item Tax Increase Decrease Component Adjusting Items | — | — | — | — | — | £833 | £-461 661 | £0 | £-569 879 |
| Gross Profit Loss | — | — | — | — | — | £2 548 133 | — | — | — |
| Impairment Loss Reversal On Investments | — | — | — | — | — | £-4 728 173 | — | — | — |
| Income Taxes Paid Refund Classified As Operating Activities | — | — | — | — | — | — | £264 876 | £-5 887 | £-6 772 |
| Increase From Depreciation Charge For Year Property Plant Equipment | — | £362 420 | £343 362 | £410 868 | £391 177 | £408 464 | £516 183 | £512 954 | £458 784 |
| Interest Income On Bank Deposits | — | — | — | — | — | £3 882 | £103 | £1 761 | £9 581 |
| Interest Paid Classified As Operating Activities | — | — | — | — | — | — | £0 | £-821 | £-366 |
| Interest Payable Similar Charges Finance Costs | — | — | — | — | — | — | £0 | £821 | £366 |
| Interest Received Classified As Investing Activities | — | — | — | — | — | £-4 144 | £-103 | £-1 761 | £-9 581 |
| Investments | — | £265 814 | £144 463 | £131 207 | £43 | £952 | £100 952 | £100 952 | £100 952 |
| Investments In Subsidiaries | — | £32 | £32 | £32 | £32 | £32 | £32 | £32 | £32 |
| Net Cash Generated From Operations | — | — | — | — | — | — | — | £-1 688 544 | £-3 464 002 |
| Net Finance Income Costs | — | — | — | — | — | £4 144 | £103 | £1 761 | £9 581 |
| Operating Profit Loss | — | — | — | — | — | £404 292 | — | — | — |
| Other Disposals Decrease In Depreciation Impairment Property Plant Equipment | — | £63 740 | £100 964 | £363 522 | — | — | £75 118 | £402 406 | £19 417 |
| Other Disposals Property Plant Equipment | — | £63 740 | £100 964 | £363 522 | — | — | £72 166 | £402 406 | £19 417 |
| Other Interest Receivable Similar Income Finance Income | — | — | — | — | — | £4 144 | £103 | £1 761 | £9 581 |
| Pension Other Post-employment Benefit Costs Other Pension Costs | £420 059 | £510 724 | £484 164 | £687 997 | £793 650 | £990 134 | £1 012 310 | £1 137 363 | £1 323 044 |
| Percentage Class Share Held In Subsidiary | — | £1 | £1 | £1 | £1 | £1 | — | — | £1 |
| Prepayments Accrued Income | — | £614 991 | £752 714 | £1 922 773 | £1 573 155 | £1 357 486 | £2 577 553 | £2 470 472 | £1 876 866 |
| Profit Loss On Ordinary Activities Before Tax | — | — | — | — | — | £5 136 609 | — | — | — |
| Property Plant Equipment | — | £378 217 | £636 831 | £564 536 | £621 549 | £442 306 | £311 773 | £998 428 | £766 230 |
| Property Plant Equipment Gross Cost | — | £1 958 367 | £2 128 469 | £2 232 828 | £2 444 762 | £2 722 693 | £3 850 413 | £3 728 763 | £3 905 373 |
| Provisions For Liabilities Balance Sheet Subtotal | — | £65 859 | — | £55 407 | — | — | — | — | — |
| Staff Costs Employee Benefits Expense | £6 988 208 | £8 388 691 | £8 584 091 | £11 919 105 | £13 933 836 | £17 258 781 | £20 505 217 | £23 829 080 | £25 858 566 |
| Taxation Including Deferred Taxation Balance Sheet Subtotal | — | — | — | — | £75 436 | £48 926 | £30 320 | £218 002 | £165 701 |
| Tax Decrease Increase From Effect Revenue Exempt From Taxation | — | — | — | — | — | £898 353 | £57 883 | £211 146 | £71 319 |
| Tax Increase Decrease From Effect Adjustment In Research Development Tax Credit | — | — | — | — | — | £-417 174 | — | — | — |
| Tax Increase Decrease From Effect Expenses Not Deductible In Determining Taxable Profit Or Loss | — | — | — | — | — | £73 655 | £94 349 | £111 899 | £138 249 |
| Tax Tax Credit On Profit Or Loss On Ordinary Activities | — | — | — | — | — | £-291 593 | £-12 243 | £194 033 | £-35 447 |
| Trade Debtors Trade Receivables | — | £1 975 490 | £1 756 104 | £1 800 179 | £2 141 393 | £1 980 924 | £3 541 423 | £3 434 105 | £3 159 496 |
| Turnover Revenue | — | — | — | — | — | £19 374 490 | — | — | — |
| Wages Salaries | — | — | — | — | — | — | — | £19 930 668 | £21 786 260 |
