BEIJING, March 11 (Xinhua) -- The gross product value generated by Chinas marine industry in 2013 was 5.4313 trillion yuan (884.9 billion U.S. dollars), up 7.6 percent year on year, according to a report released by the countrys maritime authority on Tuesday.

However, development of the shipping industry and sea salts industry continued to decline, said Shi Qingfeng, spokesman with the State Oceanic Administration.

Shi said that in 2013, gross oceanic production accounted for 9.5 percent of the countrys GDP, and 35.13 million people worked in ocean-related jobs.

Affected by the international market, Chinas shipping industry in 2013 showed a declining trend in profits and exports, with added value down 7.7 percent year on year, Shi said.

The added value of the sea salt industry in 2013 declined by 8.1 percent from 2012, affected by rainy weather, weak downstream industries and increased imports of sea salts, according to Shi.

Roads and streets in the city emptied quickly on Wednesday night in Baltimore, as a citywide curfew went into effect.

Hundreds of police rolled into town in armored vehicles wearing full riot gear before the curfew began.

The second night of curfew comes following riots over the death of Freddie Gray in police custody. Police are expected to finish the investigation into Grays death on Friday.

In the meantime, a sense of calm has returned to the city, with local schools and businesses re-opening. In the wake of the violence in Baltimore, President Barack Obama has called for reflection on poverty and social problems in the country.