Question: What is growing faster, Beihai or Yizhou District, Hechi?

Context paragraphs:
Hechi Jinchengjiang Airport: Hechi Jinchengjiang Airport (IATA: HCJ, ICAO: ZGHC) is an airport serving in the city of Hechi in Guangxi Zhuang Autonomous Region, China.  It is built on the Jiantang Mountain, in Hechi Town, Jinchengjiang District, 40 km from the city center.  With at an elevation of 677 m , it is the highest airport in Guangxi.

United States federal budget: The United States federal budget comprises the spending and revenues of the US federal government.  The budget is the financial representation of the priorities of the government, reflecting historical debates and competing economic philosophies.  The government primarily spends on healthcare, retirement, and defense programs.  The non-partisan Congressional Budget Office provides extensive analysis of the budget and its economic effects.  It has reported that the U.S. is facing a series of long-term financial challenges, as the country ages and healthcare costs continue growing faster than the economy.

San Fruttuoso (Monza): San Fruttuoso is a district of Monza, in Italy, which is bordered to the east by the districts of "St. Joseph" and Triante, on the south by the municipality of Cinisello Balsamo and west by the municipality of Muggiò.  Administratively it is included in "District 4" of the Municipality of Monza, together with the districts of Triante, St. Joseph and St. Charles.  There are 33,863 people residing in the district equal to 27.88% of the total population.  Their average age is 44 years while the percentage of elderly over 65 years is 22.51%.  With these numbers the District 4 is the most populous of all the districts as Monza and by extension is not dissimilar from the others, has a population density second only to the central area of the city.  The presence of foreigners settled in the city is growing faster and for this district the number of resident foreigners is 1,818 which represents 5.35% of the population of the district.  Among the foreign nationalities most represented this constituency are the Ecuadorian and Romanian.

Beihai: Beihai () is a prefecture-level city in the south of Guangxi, People's Republic of China.  The name of the city means "north of the sea" in Chinese, signifying its status as a seaport on the north shore of the Gulf of Tonkin, which has granted it historical importance as a port of international trade for Guangxi, Hunan, Hubei, Sichuan, Guizhou, and Yunnan.  Between the years 2006 and 2020, Beihai is predicted to be the world's fastest growing city.  Beihai has a large shipyard, but most of the money generated in the city is derived from trade.

Long River (Guangxi): The Long River (Chinese: 龙江, pinyin: Lóng Jiāng, literally: "Dragon River") is a river system in northern Guangxi Province, China.  It is a part of the larger Pearl River system by way of the Liu, Qian, Xun, and Xi Rivers.  Its true source is in Sandu Shui Autonomous County, Guizhou, where it is known as the Dagou He (Chinese: 打狗河).  It becomes the Jincheng Jiang (Chinese: 金城江) after entering Guangxi and passes through Hechi.  After joining with its left tributary, the Xiaohuan Jiang, it becomes known as the Long Jiang.  It then passes through Yizhou before meeting with the Rong Jiang to become the Liu.

Hami: Hami (), also known as Kumul (), is a prefecture-level city in eastern Xinjiang, China.  It is well known as the home of sweet Hami melons.  In early 2016, the former Hami county-level city was merged with Hami Prefecture to form Hami prefecture-level city now known as Yizhou District.

Demographics of New York City: New York City's demographics show that it is a large and ethnically diverse metropolis.  It is the largest city in the United States with a long history of international immigration.  New York City was home to nearly 8.5 million people in 2014, accounting for over 40% of the population of New York State and a slightly lower percentage of the New York metropolitan area, home to approximately 23.6 million.  Over the last decade the city has been growing faster than the region.  The New York region continues to be by far the leading metropolitan gateway for legal immigrants admitted into the United States.

Yizhou District, Hechi: Yizhou (), formerly Yishan County (宜山县), is a district under the administration of Hechi City, Guangxi Zhuang Autonomous Region, People's Republic of China.

Cephalocaudal trend: The cephalocaudal trend, or cephalocaudal gradient of growth, refers to the pattern of changing spatial proportions over time during growth.  One example of this is the gradual change in head size relative to body size during human growth.  During prenatal growth, from conception to 5 months, the head grows more than the body.  In humans, the head comprises almost 50% of total body length at approximately the third month of intrauterine development.  By the time of birth the head has decreased to approximately 30% of total body length as a result of the limbs and trunk growing faster than the head.  This trend continues postnatally along an axis of increased growth from the head to the feet.  Finally, in adults, the head represents approximately 6% of the body length.  The cephalocaudal trend is also the trend of infants learning to use their upper limbs before their lower limbs.  The proximodistal trend, on the other hand, is the prenatal growth from 5 months to birth when the fetus grows from the inside of the body outwards.  When referring to motor development, the proximodistal trend refers to the development of motor skills from the center of the body outwards.

Yizhou District, Hami: Yizhou (; ), is the central district of the Hami prefecture-level city, in Xinjiang Uyghur Autonomous Region, China.  Its population was 472,175 at the end of 2010.  It was known as Hami county-level city until February 2016, when it was merged with the Hami Prefecture to form the Hami prefecture-level city, and the county-level city was renamed Yizhou District.

Supporting paragraphs: Beihai Yizhou District, Hechi
Answer: Beihai