Global sales of computer chips in September had their biggest one-month percentage increase in 13 years, driven by a strong PC market, according to an industry trade group.

The Semiconductor Industry Association said sales rose 6.5% in September to $14.4 billion. The increase from August was the seventh in a row.

The year-on-year increase for the third quarter was even greater. Sales surged 17.5% to $43.3 billion. Sales were also up sharply from the second quarter.

The trade group said the data confirm "demand in the global semiconductor market is rising briskly," adding that demand is strong in all sectors of the industry.

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The Asia-Pacific region led sales gains with a 19.1% increase, followed by Europe, with 12%. The Americas region registered 8.6% growth.

On Nov. 5, the SIA releases its annual, three-year global forecast.