Chapter 24 Appendix L: Allocation of PSUs to quota months across major regional strata (International Territorial Level 2 (ILT2) areas)
This table shows how many Primary Sampling Units (PSU) were allocated to each major geographical strata in each quota month.
| Major Stratum ID | Major Stratum | January | February | March | April | May | June | July | August | September | October | November | December | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Bedfordshire and Hertfordshire | 3 | 3 | 5 | 5 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 3 | 45 |
| 2 | Berkshire, Buckinghamshire and Oxfordshire | 6 | 5 | 5 | 3 | 6 | 5 | 5 | 6 | 4 | 6 | 4 | 5 | 60 |
| 3 | Cheshire | 1 | 2 | 4 | 1 | 4 | 1 | 2 | 2 | 2 | 4 | 1 | 3 | 27 |
| 4 | Derbyshire and Nottinghamshire | 5 | 5 | 4 | 5 | 5 | 4 | 6 | 5 | 2 | 3 | 4 | 6 | 54 |
| 5 | Devon and Cornwall | 4 | 5 | 3 | 4 | 6 | 3 | 5 | 4 | 4 | 5 | 3 | 4 | 50 |
| 6 | Dorset and Somerset | 3 | 3 | 4 | 3 | 3 | 4 | 2 | 3 | 4 | 4 | 2 | 4 | 39 |
| 7 | East Anglia | 5 | 6 | 5 | 6 | 5 | 5 | 7 | 4 | 5 | 9 | 3 | 5 | 65 |
| 8 | East Yorkshire and Northern Lincolnshire | 0 | 1 | 2 | 2 | 0 | 2 | 1 | 1 | 2 | 0 | 1 | 2 | 14 |
| 9 | Essex | 6 | 2 | 4 | 4 | 5 | 3 | 3 | 4 | 4 | 3 | 4 | 4 | 46 |
| 10 | Gloucestershire, Wiltshire and Bath/Bristol area | 6 | 4 | 5 | 5 | 4 | 6 | 6 | 6 | 4 | 4 | 7 | 4 | 61 |
| 11 | Greater Manchester | 6 | 6 | 5 | 6 | 5 | 6 | 5 | 6 | 6 | 7 | 5 | 5 | 68 |
| 12 | Hampshire and Isle of Wight | 4 | 5 | 3 | 5 | 4 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 50 |
| 13 | Herefordshire, Worcestershire and Warwickshire | 3 | 2 | 4 | 3 | 3 | 2 | 2 | 3 | 4 | 3 | 2 | 4 | 35 |
| 14 | Inner London - East | 5 | 5 | 6 | 4 | 6 | 6 | 6 | 6 | 5 | 6 | 6 | 6 | 67 |
| 15 | Inner London - West | 4 | 2 | 4 | 4 | 3 | 2 | 4 | 3 | 2 | 3 | 3 | 2 | 36 |
| 16 | Kent | 4 | 4 | 3 | 4 | 3 | 4 | 5 | 3 | 4 | 4 | 4 | 4 | 46 |
| 17 | Lancashire and Cumbria | 6 | 3 | 5 | 3 | 4 | 6 | 4 | 5 | 4 | 2 | 6 | 6 | 54 |
| 18 | Leicestershire, Rutland and Northamptonshire | 5 | 3 | 5 | 5 | 4 | 5 | 3 | 5 | 5 | 3 | 5 | 5 | 53 |
| 19 | Lincolnshire | 0 | 1 | 1 | 1 | 2 | 0 | 1 | 1 | 2 | 2 | 0 | 1 | 12 |
| 20 | Merseyside | 4 | 3 | 3 | 5 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 2 | 41 |
| 21 | North Yorkshire | 3 | 3 | 2 | 2 | 3 | 3 | 3 | 4 | 1 | 4 | 2 | 2 | 32 |
| 22 | Northumberland, and Tyne and Wear | 8 | 2 | 3 | 4 | 5 | 4 | 4 | 4 | 5 | 4 | 5 | 4 | 52 |
| 23 | Outer London - East and North East | 5 | 4 | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 2 | 5 | 6 | 49 |
| 24 | Outer London - South | 1 | 4 | 3 | 2 | 4 | 2 | 3 | 4 | 2 | 4 | 2 | 3 | 34 |
| 25 | Outer London - West and North West | 5 | 6 | 4 | 5 | 5 | 4 | 4 | 4 | 5 | 5 | 4 | 5 | 56 |
| 26 | Shropshire and Staffordshire | 4 | 4 | 3 | 3 | 4 | 4 | 5 | 2 | 3 | 3 | 4 | 3 | 42 |
| 27 | South Yorkshire | 3 | 3 | 3 | 4 | 3 | 2 | 4 | 2 | 3 | 4 | 3 | 2 | 36 |
| 28 | Surrey, East and West Sussex | 6 | 3 | 9 | 6 | 5 | 7 | 6 | 5 | 8 | 5 | 7 | 5 | 72 |
| 29 | Tees Valley and Durham | 0 | 3 | 2 | 0 | 3 | 2 | 2 | 1 | 1 | 2 | 1 | 2 | 19 |
| 30 | West Midlands | 5 | 7 | 5 | 5 | 5 | 6 | 4 | 7 | 6 | 6 | 6 | 5 | 67 |
| 31 | West Yorkshire | 5 | 3 | 6 | 6 | 4 | 4 | 5 | 6 | 5 | 3 | 6 | 5 | 58 |
| X | Total | 125 | 112 | 123 | 119 | 124 | 117 | 122 | 122 | 116 | 122 | 117 | 121 | 1440 |