By the way, despite a high age (so far) in Japan, it does not say anything about their healthy in that age. . .nor about the health of children.
And since this has been a serious problem in Japan since lately, they may not appear as such anywhere in statistics.
WHO Issues New Healthy Life Expectancy Rankings
Japan Number One in New ツ'Healthy Life' System
Japanese have the longest healthy life expectancy of 74.5 years among 191 countries, versus less than 26 years for the lowest-ranking country of Sierra Leone, based on a new way to calculate healthy life expectancy developed by the World Health Organization (WHO).
Previously, life expectancy estimates were based on the overall length of life based on mortality data only.
For the first time, the WHO has calculated healthy life expectancy for babies born in 1999 based upon an indicator developed by WHO scientists, Disability Adjusted Life Expectancy (DALE). DALE summarizes the expected number of years to be lived in what might be termed the equivalent of "full health." To calculate DALE, the years of ill-health are weighted according to severity and subtracted from the expected overall life expectancy to give the equivalent years of healthy life.
The WHO rankings show that years lost to disability are substantially higher in poorer countries because some limitations -- injury, blindness, paralysis and the debilitating effects of several tropical diseases such as malaria -- strike children and young adults. People in the healthiest regions lose some 9 percent of their lives to disability, versus 14 percent in the worst-off countries.
In terms of DALE, the rest of the top 10 nations are Australia, 73.2 years; France, 73.1; Sweden, 73.0; Spain, 72.8; Italy, 72.7; Greece, 72.5; Switzerland, 72.5; Monaco, 72.4; and Andorra, 72.3.
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http://www.who.int/inf-pr-2000/en/pr2000-life.html