asked the Minister of Labour whether he will give the number of man-days lost through unemployment for each year since 1919?

The table below shows the estimated total number of working days lost owing to unemployment in each year since 1923 (the earliest year for which comparable figures can be given) by persons aged 16 to 64 insured against unemployment in Great Britain.The figures do not include unemployment among agricultural and other classes of workers who have been brought within the scope of unemployment insurance since 1935.

Year.	Number(Million days).
1923	390
1924	350
1925	380
1926	440
1927	340
1928	380
1929	380
1930	590
1931	810
1932	850
1933	760
1934	650
1935	600
1936	520
1937	440
1938	530*
* This figure has been computed under the revised procedure for counting the unemployed introduced in September, 1937, and is, therefore, not strictly comparable with the figures for earlier dates.

It is estimated that the aggregate number of possible working days for insured persons, aged 16–64 (exclusive of agricultural and domestic workers) ranged from about 3,300 million in 1923 to about 4,200 million in 1938.