By 2050, 1 in 4 persons in East and North-East Asia will be 65 years or older

According to the projection, by 2050, 1 in 4 persons living in the 6 countries of East and North-East Asia (China, DPRK, Japan, Mongolia, the Republic of Korea, and the Russian Federation) will be 65 years or older. (Data: World Population Prospects, The 2012 Revision)