asked the Secretary of State for Employment what was the average length of strikes in each year from 1963 to 1973.

	Number of stoppages beginning in:
	1963	1964	1965	1966	1967	1968	1969	1970	1971	1972
Not more than 1 day	804	975	808	645	615	680	933	963	475	566
Over 1 and not more than 2 days	475	615	508	425	502	486	614	659	372	368
Over 2 and not more than 3 days	277	310	303	249	271	284	395	523	283	276
Over 3 and not more than 4 days	149	142	180	160	165	190	241	303	207	181
Over 4 and not more than 5 days	86	126	131	120	131	143	197	286	170	156
Over 5 and not more than 6 days	56	61	71	65	66	102	106	188	97	82
Over 6 and not more than 12 days	116	154	179	157	194	263	347	476	287	359
Over 12 and not more than 18 days	37	49	66	51	62	95	106	210	133	163
Over 18 and not more than 24 days	16	25	29	20	38	48	59	90	56	105
Over 24 and not more than 36 days	36	31	40	15	38	41	55	121	59	114
Over 36 and not more than 60 days	9	25	29	19	22	26	36	59	57	82
Over 60 days	7	11	10	11	12	20	27	28	32	45

Figures for 1973 on the above basis are not yet available. For provisional information for that year I would refer my hon. Friend to the written reply given to the hon. Member for Oldham, West (Mr. Meacher) on 31st January 1974.