The annual average growth rate is, unless otherwise specified, computed as the coefficient *b*
in the exponential trend function *y* = *a*e^{bt} where *t* stands for time and *y*
is the object of measurement. This method takes all observations in the analysed period into account. Therefore, the growth rate reflects trends that are less influenced by exceptional values.

In Total and urban population page, annual population growth is expressed by the annual exponential rate of growth, defined as: