Table 1.

Records of blood donations between 23 July 1996 and 23 June 2005 for individuals aged 18-65 years old - Ribeirão Preto Blood Center

	Year
		1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	Total
Total number of individuals who intended to donate blood		17,595	54,262	57,749	71,389	76,485	88,710	94,580	96,459	93,169	47,104
Total number of first-time donors who intended to donate blood		17,595	46,691	38,392	43,561	39,786	43,754	42,558	40,711	36,638	14,469	364,155
First time donors as a percentage of total donors		100.0%	86.0%	66.5%	61.0%	52.0%	49.3%	45.0%	42.2%	39.3%	30.7%
Total number of first-time volunteer donors		2795	11,489	9398	11,569	12,750	15,372	16,756	16,555	15,157	3712	115,553
First-time volunteer donors as a percentage of total first time donors		15.9%	24.6%	24.5%	26.6%	32.0%	35.1%	39.4%	40.7%	41.4%	25.7%
Total intentions to donate blood*		19,115	69,036	75,959	93,261	102,653	119,427	128,571	132,759	124,882	52,841	918,504
Total intentions to donate blood among first-time volunteer donors*		3065	17,726	21,878	29,216	37,556	46,718	54,046	57,925	56,147	21,934	346,211

*There is the possibility that the same individual has the intention to donate blood twice a year