Table 7. Susceptibility to penicillin and rifampin by year-Southern cone.

Year	PENICILIN			RIFAMPICIN
	Susceptible	Intermediate	Resistant	Susceptible	Intermediate	Resistant
2006	49 (27.8%)	123 (69.9%)	4 (2.3%)	176 (100%)	0	0
2007	71 (28.9%)	175 (71.1%)	0	237 (99.6%)	1 (0.4%)	0
2008	100 (42.0%)	137 (57.6%)	1 (0.4%)	238 (100%)	0	0
2009	110 (51.6%)	103 (48.4%)	0	204 (99.5%)	0	1 (0.5%)
2010	108 (50.7%)	105 (49.3%)	0	204 (99.0%)	0	2 (1.0%)
Total	438 (40.3%)	643 (59.2%)	5 (0.5%)	1059 (99.6%)	1 (0.1%)	3 (0.3%)