According to a United Nations report (2008), by the
year 2000, the elderly global population had reached
600 million, accounting for 10% of the total population,
and it was estimated to increase to 2 billion by 2050,
comprising up to 21% of the total population. The
elderly population is expected to quadruple in size
from the year 2000 to 2050; those aged 80 and over
would nearly quintuple. Therefore, the government of