Table 1. Human cases of leptospirosis by area of residence, Rio Grande do Sul, 2008–2012.

Year	Urban	%	Periurban	%	Rural	%	Unknown	%	Total	% *
2008	129	31%	16	4%	175	42%	92	22%	412	19%
2009	129	28%	20	4%	214	47%	92	20%	455	21%
2010	137	30%	15	3%	229	50%	73	16%	454	21%
2011	181	33%	18	3%	249	46%	95	17%	543	25%
2012	101	36%	17	6%	114	41%	45	16%	277	13%
Total	7	32%	86	4%	981	46%	397	19%	2141	100%

*Relative to the total during the 5 years

Source: SINAM, Ministry of Health of Brazil.