|Date of event||Event||Special Event status||Clarification of event and affected outputs|
|18 September||Scottish Referendum||No||The referendum will not be a statistical special event in itself. If the vote is for independence, the whole statistical system will need to be adjusted.|
|23 July to 3 August||Commonwealth Games – Edinburgh to host|
|January and February||Continuing storms and high rainfall leading to flooding, loss of power and travel disruption.||Under review||In January we assessed that disruption and flooding were localised and did not constitute a statistical special event. The continuing storms and resulting situation are being monitored. A decision on whether a special event has occurred and coordination of commentary across outputs is needed will be taken based on the evidence from data collections.|
|January||Employment restrictions for Romanian and Bulgarian nationals lifted||No||A long-term (structural) change and therefore part of what the employment series are expected to measure.|
|December||Storms and high rainfall leading to flooding and loss of power in some areas.||No. Although there was disruption in some areas it did not have an extended effect over many outputs.|
|8 November||Typhoon in the Philippines||No||Effect not expected to be detectable given normal variation in series|
|1-16 October||US government shutdown||No||Effect not expected to be detectable given normal variation in series|
|22 July||Birth of Prince George||No. There were no changes to holiday or work patterns, and any effects are unlikely to be detectable or to affect multiple series.|
|1 July||Croatia accession to the European Union||No.|
|End March||Snowfall in the north and cold temperatures||No. Although there was disruption in some areas it did not have an extended effect over many outputs.|
|20 March||PCS Strike||No. The effect of the strike was not distinguishable from the normal variation in the series.|
|November||Flooding after heavy rain in many areas||No|
|27 July to 12 August and 29 August to 9 September||London Olympics and Paralympics||Yes||
Some elements of Olympic expenditure (particularly ticket sales) were included in series at the time of the Olympics, and normal patterns of tourism and travel were disrupted. For more detail of how series were affected see this article (229 Kb Pdf) , and for more information on which aspects were expected to be affected see the Olympics information note.
|April - June||Wettest April to June since records began||No. This is part of the normal weather-based variation in the statistics|
|5 June (but also affected 28 May and 4 June)||The Queen's Diamond Jubilee||Yes||
Affected both May and June figures across many economic outputs and made interpretation of changes when including those months less certain. There was coordination of commentary across outputs, and the way that this event was factored in to nowcasts of GDP components was explained in an article released alongside the preliminary estimate of GDP.
|10 May||Public sector strike||No. The effect of the strike was not distinguishable from the normal variation in the series|
|30 November||Public sector strike||No. The effect of the strike was not distinguishable from the normal variation in the series||There was coordination across affected output.|
|6 August to 10 August||UK Riots||No. The effect of the riots were not distinguishable from the normal variation in the series|
|30 June||PCS strike||No. The effect of the strike was not distinguishable from the normal variation in the series|
|April||Warmest April since records began||No*. This is part of the normal weather-based variation in the statistics|
|29 April||Royal Wedding||Yes*|
|March||Earthquake in Japan||No*|
|4 January||VAT increase to 20%||No. The only series where the effect of VAT is not already accounted for is CPI/RPI|
|December||Bad weather||Yes. Although this is part of the normal weather-based variation in the series, it disrupted transport and outside work for an extended period|
Yes. The principle effect was in the International Passenger Survey, but there were impacts in other series too.
|1 January||VAT increase to 17.5%||No. The only series where the effect of VAT is not already accounted for is CPI/RPI|
|1 December||VAT decrease to 15%||No. The only series where the effect of VAT is not already accounted for is CPI/RPI|
|June||The Queen's Golden Jubilee||Yes||Jubilee Effect Distorts Data - December 2002|
* These events were treated as a group of events all affecting outputs in April 2011, when the group was regarded as Special.