For the intermediate ages of wives, interpolate by exact fifths, but where to do so would give a figure of more than two decimal points, that figure shall be taken to its nearest hundredth part of a unit.

至于介乎所列岁数之间的妻子岁数，则以五等分插值法推算，但如由此计得的数字多于两个小数字，则须将该数字简化至最接近的百分之一位。

http://www.legislation.gov.hk/eng/index.htm 31.08.2011

http://www.legislation.gov.hk/eng/index.htm 31.08.2011