Table 1 Distribution of tumour site by year and sex (N and %), (a) males and (b) females

	1979–1984	1985–1990	1991–1996	1997–2002	Total
(a) Males
Head	31	62	66	96	255
	25.83	25.31	22.92	25.40	24.73
Anterior trunk	16	31	37	49	133
	13.33	12.65	12.85	12.96	12.90
Posterior trunk	29	64	92	123	308
	24.17	26.12	31.94	32.54	29.87
Arm	7	20	34	40	101
	5.83	8.16	11.81	10.58	9.80
Leg	23	36	33	49	141
	19.17	14.69	11.46	12.96	13.68
Other and unknown	14	32	26	21	93
	11.67	13.06	9.03	5.56	9.02
Total (N)	120	245	288	378	1031
%	100.00	100.00	100.00	100.00	100.00
(b) Females
Head	49	70	95	79	293
	21	16	20	13	17
Anterior trunk	17	26	37	41	121
	7	6	8	7	7
Posterior trunk	21	51	50	93	215
	9	12	10	16	12
Arm	26	54	74	102	256
	11	12	15	17	15
Leg	91	184	181	221	677
	38	42	37	37	38
Other and unknown	33	53	49	62	197
	14	12	10	10	11
Total (N)	237	438	486	598	1759
%	100	100	100	100	100

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