| | | | | | | | | | | | | | | | | | | | | | |
| | | 2005 | 2006 | 2007 | 2008 | 2009 | | |
| Exemption | Q1 | Q2 | Q3 | Q4 | Q1 | Q2 | Q3 | Q4 | Q1 | Q2 | Q3 | Q4 | Q1 | Q2 | Q3 | Q4 | Q1 | Q2 | | |
| 21 | Information accessible by other means | | | | | | 2 | 3 | 7 | 5 | 6 | 7 | 4 | 11 | 4 | 7 | 10 | 20 | 14 | | |
| 22 | Information intended for future pulbication | | | 0 | 0 | 0 | 1 | | 3 | 3 | 1 | 2 | 0 | 0 | 1 | 1 | 2 | 3 | 1 | | |
| 23 | Information supplied by, or relatiung to bodies dealing with security matters | | | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | | |
| 24 | National Security | | | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | | |
| 26 | Defence | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 27 | International relations | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 28 | Relations with the UK | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 29 | The economy | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 30 | Investigations or proceedings conducted by public authorities | | | 3 | 2 | 4 | 5 | 4 | 7 | 6 | 1 | 3 | 5 | 6 | 3 | 1 | | 3 | 1 | | |
| 31 | Law Enforcement | | | 1 | 1 | 11 | 9 | 8 | 8 | 12 | 8 | 8 | 7 | 11 | 13 | 6 | 4 | 3 | 6 | | |
| 32 | Court records etc. | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 33 | Audit functions | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 34 | Parliamentary priviledge | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 35 | Formulation of government policy | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 36 | Prejudice of effective conduct of public affairs | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 37 | Communications with her majesty etc. and honours | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 38 | Heath and Safety | | | | 1 | 11 | 9 | 4 | 12 | 9 | 6 | 3 | 3 | 2 | 5 | 4 | 1 | | 3 | | |
| 40 | Personal Information | | | 30 | 22 | 41 | 31 | 20 | 33 | 44 | 27 | 42 | 42 | 29 | 35 | 34 | 33 | 36 | 33 | | |
| 41 | Information provided in confidence | | | 1 | 2 | 2 | 3 | 3 | 3 | 4 | 0 | 3 | 4 | 2 | 3 | 3 | 1 | 5 | 2 | | |
| 42 | Legal professional priviledge | | | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | | |
| 43 | Commercial Interest | | | 0 | 4 | 2 | 3 | 2 | 2 | 4 | 2 | 0 | 0 | 7 | 3 | 2 | 0 | 5 | 2 | | |
| 44 | Prohibitions on disclosure | | | 1 | 1 | 2 | 1 | 0 | 8 | 3 | 7 | 1 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | | |
| | | | | | | | | | | | | | | | | | | | | | |
| Other reasons for refusal | | |
| 12 | Above fees limit | | | 3 | 1 | 5 | 6 | 1 | 13 | 5 | 2 | 9 | 13 | 24 | 39 | 45 | 11 | 31 | 29 | | |
| 14 | Vexatious / repeated | | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | | |
| | No information is held | | | 6 | 11 | 9 | 10 | 19 | 14 | 11 | 13 | 8 | 19 | 14 | 12 | 13 | 5 | 13 | 10 | | |
| | Neither confirm or deny response | | | | | | 1 | 0 | 0 | 1 | 2 | 0 | 0 | 1 | 6 | 1 | 5 | 11 | 3 | | |
| | Withdrawn | | | | | | 1 | 0 | 9 | 7 | 2 | 1 | 1 | 9 | 2 | 2 | 4 | 8 | 5 | | |