The export of high-tech products in Shanghai is becoming a powerful booster in the field of foreign trade. The latest statistics released by Shanghai Customs show that in the first three quarters of this year, the cumulative export volume of high-tech products in Shanghai reached US $25.49 billion, an increase of 25.8% over the same period of the whole year, accounting for 38.1% of the total export volume of all kinds of products in the city, 10.6 percentage points higher than the national average.
The above changes in Shanghai's export commodities indicate which of the following?
The quality of Shanghai's export commodities has achieved a leap.