Table 1:

Distribution of the observed cases

Cohort	Age at entry into study (computed)	Males		Females		Reaching
		Censored	Observed	Censored	Observed	age
		cases	deaths	cases	deaths	105
1896	112	0	0	0	4	4
1897	111	0	0	0	1	1
1898	110	0	0	0	5	5
1899	109	0	0	1	12	13
1900	108	0	0	0	23	23
1901	107	0	7	0	46	53
1902	106	0	17	2	134	153
1903	105	0	23	2	195	220
1904	105	0	35	5	302	342
1905	105	2	40	10	331	383
1906	105	2	48	19	348	417
1907	105	11	55	40	354	460
1908	105	19	57	106	345	527
1909	105	28	33	219	296	576
1910	105	64	22	423	150	659
Total		126	337	827	2546	3836