BEIJING — China’s electricity consumption, a key barometer of economic activity, rose 9.4 percent year on year in the first six months as the economy showed resilience, official data showed.

In the Jan-June period, total power use hit 3.23 trillion kilowatt-hours, according to the National Energy Administration (NEA).

On a year-on-year basis, electricity used by the service sector rose 14.7 percent, followed by a 7.6-percent increase for the industrial sector and 13.2 percent for residential power use. Power consumption in the agricultural sector went up 10.3 percent, the NEA said.

In June alone, China’s electricity consumption surpassed 566 billion kilowatt-hours, up 8 percent from the same period last year.

China’s economy is predicted to expand 6.7 percent in the first half of 2018, according to a report released by the international financial research institution with the Bank of China.

The figure would mark a slight retreat from the growth seen in the first quarter but still point to continued resilience, the report said.