We cannot use the same approach here as for commercial services.
The new commercial service ran for just over a year.
The line opened to the public for commercial service on June 30, 2011.
It made little difference that China had no commercial air service at the time.
The companies in the survey spent a total of $1.1 billion on commercial air services last year.
"It will make possible a wide range of new commercial services."
The airport has not had commercial air service since the 1960s.
The first line opened for commercial service in January 30, 2009.
The line is scheduled to begin commercial service by the end of 2013.
Certainly public health is not an economic, industrial or commercial service.