100歳人口（hyakusai jinko）： Population of 100 years old

Japan is known as a country of longevity. Guess how many people who are over 100 there are in Japan.
September 15 was used to be keiro no hi(敬老の日), the Respect-for-the Aged Day. Now it falls on the third Monday of September. Prior to that day, the Ministry of Health, Labour and Welfare researched the population of over 100 years old and published.
There will be 40,399 people who are over 100 as of Sep. 15. This is the first time to exceed more than 40,000 and the most in the history. Women occupy 86.5%. There are 5,447 men which is increasing for 29 years straight. There are 34,952 women which is increasing for 39 years straight.
The oldest woman is 114 years old and lives in Okinawa (沖縄). The oldest man is 112 years old and lives in Kyoto (京都).
The research has started in 1963. In 1998 the number reached 10,000. 5 years later in 2003 there were 20,000. 4 years later in 2007 there were 30,000. Within only 2 years there are 40,000.
There are 21,603 (3,365 men 18,238 women) who become 100 years old this year, which is the most in the history.