Table 1.

Female breast cancer cases (in situ and invasive) in SEER’s 9+13+17 Registries Databases, diagnosed during the years 1974 through 2005

Time (yrs)	1974 –1977	1978 – 1981	1982 – 1985	1986 – 1989	1990 – 1993	1994 1997	1998 – 2001	2002 – 2005	Birth Cohort
Age (yrs)	Rate	Rate	Rate	Rate	Rate	Rate	Rate	Rate
21 – 24	1	1	2	2	2	2	2	2	1981
25 – 28	6	6	7	8	7	7	8	8	1977
29 – 32	19	17	19	22	22	21	22	20	1973
33 – 36	39	39	42	48	47	48	49	44	1969
37 – 40	72	72	83	94	91	92	96	86	1965
41 – 44	116	117	137	166	160	158	165	152	1961
45 – 48	167	164	193	238	246	241	245	226	1957
49 – 52	202	194	223	277	290	306	308	277	1953
53 – 56	222	217	245	296	312	335	363	323	1949
57 – 60	260	254	292	345	356	383	421	403	1945
61 – 64	287	286	328	396	399	419	464	451	1941
65 – 68	328	317	371	446	459	472	509	497	1937
69 – 72	344	341	386	474	486	510	538	513	1933
73 – 76	357	353	410	487	510	534	575	536	1929
77 – 80	374	348	405	493	499	533	572	545	1925
81 – 84	352	348	381	464	482	498	547	519	1921
									1917
									1913
									1909
									1905
									1901
									1897
									1893