% S by year (SPN/HI)
Antimicrobial	1998	1999	2000	2001	2002	2003
Penicillin (PEN)	84 (3)a/10b	83 (6)a/13b	75 (5)a/7b	82 (8)a/16b	78 (8)a/16b	72 (10)a/
Erythromycin (ERY)/Clarithromycin	85/90	88/100	91/92	90/91	94/90	91/94
Clindamycin (CLI)	94/-	95/-	96/-	95/-	100/-	98/-
Gatifioxacin/Levofloxacin	100/100	100/100	100/100	100/100	100/100	100/100
Chloramphenicol (CHL)	99/96	98/99	99/97	100/95	99/93	100/96
Tetracycline (TET)	72/96	75/84	82/95	78/95	86/98	85/96
Cotrimoxazole	50/53	52/53	51/55	40/48	39/54	39/57

^a% RCMI (> 2 mg/L) to PEN.

^bβ-lactamase producing strains.