Presented below in the table are the population in China (mainland) at mid-year 2010 and at midyear 2020 by age ranges

Using the information provided (please keep at least 2 decimal places for all rates and ratios):

i) project the size of the population in China at the end of 2030, assuming the Chinese population will decline at the same rate as its growth rate between 2010 and 2020.

ii) project the size of the working age population (i.e., those aged 15-64) in China at the end of 2030, assuming Chinese working age population will grow at the same rate as between 2010 and 2020.

iii) calculate the child dependency ratio and old-age dependency ratio in China for 2010 and 2020 and comment on the change of dependency ratios over time

iv) compare and comment on the growth rate for the total population in China and the growth rate for the Chinese working age population between 2010 and 2020. Further, using knowledge learned in this unit, discuss the contributing factors to the growth/change of the total population and the growth/change of the working age population in China between 2010 and 2020

Population in China Population in China Age range (in millions) (in millions) 2010 mid- car 2020 mid- ear 0-14 249 257 15-64 983 989 65 and above 116 180 Total 1,348 1,426