Table 1b DfT serious/slight adjusted and unadjusted casualties, 2004 to 2020

	DfT adjusted serious	DfT adjusted Slight	Dft unadjusted Serious	Dft unadjusted Slight	DfT Serious/Slight total
2004-2008 ave	4,865	11,813	2,587	14,091	16,678
2004	5,155	12,928	2,741	15,342	18,083
2005	5,091	12,383	2,643	14,831	17,474
2006	4,941	11,871	2,614	14,199	16,813
2007	4,531	11,226	2,365	13,393	15,758
2008	4,606	10,655	2,572	12,691	15,263
2009	4,316	10,389	2,281	12,424	14,705
2010	3,734	9,382	1,964	11,152	13,116
2011	3,584	8,985	1,873	10,699	12,572
2012	3,694	8,704	1,956	10,442	12,398
2013	3,269	8,024	1,662	9,631	11,293
2014	3,257	7,770	1,692	9,339	11,031
2015	3,143	7,628	1,597	9,176	10,773
2016	3,208	7,465	1,693	8,980	10,673
2017	2,858	6,352	1,578	7,633	9,211
2018	2,750	5,465	1,580	6,635	8,215
2019	2,519	4,877	1,891	5,505	7,396
2020	1,547	3,352	1,547	3,352	4,899
2019 change on 2018	-38.6	-31.3			-33.8
2019 change on 04-08 average	-68.2	-71.6			-70.6

Source: Department for Transport.

The unadjusted figures in this table are National Statistics

The adjusted figures in this table are Experimental Statistics

Unadjusted figures in this table may not match those in other tables in this publication as DfT close their database each year but Transport Scotland keep theirs open.

Figures for serious and slight injuries are as reported by police. Since 2016, changes in severity reporting systems for a large number of police forces mean that serious injury figures, and to a lesser extent slight injuries, are not comparable with earlier years. Adjustments to account for the change have been produced.

More information on the change and the adjustment process is available at the following address.

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/833813/annex-update-severity-adjustments-methodology.pdf

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