人口老龄化--PPT模板---同济大学.pptVIP

Population aging Reporter: 顾梦娇、季国越、周宇 1 A population is generally considered to be ‘aged’ if persons over 60 account for more than 10 percent. Population aging in China Today, China’s average is equal to that of the world in terms of the proportion of people aged 60+ about 10percent. However, by 2050, this proportion is expected to rise to 30 percent. The absolute numbers are estimated to increase from 128 million in 2000 to 431 million in 2050. Population aging in China Such changes in the population age structure are unprecedented in Chinese history, rapidly accelerating the aging of our world. Population aging in China Population aging in China Population ageing ----geographical variation in china Population aging in China China is moving rapidly toward an aging society. Population aging in China Population aging in USA The older population--persons 65 years or older--numbered 40.4 million in 2010 .They represented 13.1% of the U.S. population, over one in every eight Americans. In 2010, there were 23.0 million older women and 17.5 million older men, or a sex ratio of 132 women for every 100 men. The female to male sex ratio increases with age, ranging from 112 for the 65-69 age group to a high of 206 for persons 85 and over. Population aging in USA Persons 65+ as a percentage of total population,2010 Population aging in USA Population aging in Japan According to government estimates, more than 16 million Japanese women have reached 65, the highest number since records began in 1950. Nearly one-fifth of men are 65 or older, meaning elderly people account for 22.7% of the population. Population aging in Japan Japan now has 28.98m elderly (those 65 or older according to the World Health Organization) out of its population of 127m more than a year ago. Population aging in Japan Population aging in Japan Population aging in the World The number of people aged 80 and older is growing at a faster rate than any other age group worldwide