For this part, you are allowed to write a composition according to the data given bellow.
Population over 60 years old in the world Year
250 million 1980
360 million 1990
440 million 1994
580 million 2007
In China: 132 million in total 1245(10.6%)
1. Write out the messages conveyed by the data.
2. Point out what measures China take and give your comments.