This path illustrates well what is called a “fictitious” We would  generation, because no one will be 0 years old in 2019, 1 year old in 2019, 2 years old in 2019, etc. during their lifetime. Babies born in 2019 will be 1 year old in 2020, 2 years old in 2021, etc.  wait more than 100 years, or at least until the year 2120, to be able to measure their “real” average age We would  at death. We should therefore not confuse life expectancy at birth in 2019 with the average age at which people born in 2019 will die. And so on until the entire generation has died.

However, we need to know

Without waiting all this time, how mexico phone number library mortality is evolving, especially when, as in 2003 or 2020, an event (a heatwave, a health crisis, etc.) has a strong impact on deaths. To summarize the mortality conditions of a given year, and compare them from one year to the next, we use the life expectancy indicator: a single figure to summarize more than a hundred mortality rates by age measured in a given year.

Why not simply take the average

Age at death of people who died in a given year?
We could also consider only people who actually died there are therefore many more people in 2019 and simply calculate “the average age of people who died in 2019”, then compare this age to that of people who died in another year, in 2014 for example. But germany cell number we would not take into account the fact that the population does not have the same age structure each year: the number of people aged 80 or over, for example, is not the same in 2019 (4.1 million) as in 2014 (3.7 million). This influences the number of deaths, mortality being much higher at older ages than at younger ages: the more elderly people there are in the population, the more deaths there are potentially in a given year.