Answer based on context:

Greek society has changed rapidly over the last several decades, coinciding with the Aging of Europe of declining fertility and rapid aging. The fertility rate of 1.41 is below replacement levels and is one of the lowest in the world, subsequently leading to an increase in the median age to 44.2 years, the seventh-highest in the world. In 2001, 16.71 percent of the population were 65 years old and older, 68.12 percent between the ages of 15 and 64 years old, and 15.18 percent were 14 years old and younger. By 2016, the proportion of the population age 65 and older rose to 20.68 percent, while those age 14 and younger declined to slightly below 14 percent.

How many more percent of the population were 65 years old and older compared to 14 years old and younger in 2001?
1.53