From the CDC website:
Trends Worldwide-- rates of invasive disease, STSS and NF increased from the mid-1980s to early 1990s. Rates of invasive disease have been stable over the last 5 years in the United States. Increases in the rate and severity of disease associated with increases in prevalence of M-1 and -3 serotypes (emm types 1 and 3). Resistance to erythromycin has increased worldwide.
Approximately 8,800 annual cases of invasive disease (3.2/100,000 population) occurred in 2000; approximately 4% were STSS and 6% were NF. Over 10 million noninvasive GAS infections (primarily throat and skin infections) occur annually.
Note this data is not updated to 2002.