Suppose the following are the percentages of different age groups in China in year 2000, 2010 and 2020.

Year 2000 2010 2020 Children (Agc O - 24) 0.39 0.33 0.29 Adults (Age 25 64) 0.54 0.57 0.59 Senior (Age 65 and above) 0.07 0.09 0.12 Year 2000 2010 2020 Children (Agc O - 24) 0.39 0.33 0.29 Adults (Age 25 64) 0.54 0.57 0.59 Senior (Age 65 and above) 0.07 0.09 0.12