BEIJING, Sept. 17 (Xinhua) -- China witnessed remarkable progress in the postal sector over the past 70 years, an official said at a press conference Tuesday.

The sector raked in 1.2 trillion yuan (about 174.5 billion U.S. dollars) of revenue in 2018, over 7,700 times of that in 1949, according to Ma Junsheng, head of the State Post Bureau.

Over 50.7 billion parcels were delivered in 2018 through express delivery, and the average annual growth of express delivery industry stood at 41.5 percent in the past 30 years, said the SPB.