CHANGES IN THE DEVELOPMENT OF THE NORMAL LENGTH OF LIFE AND LIFE EXPECTANCY IN THE CZECH POPULATION

The article deals with the analysis of the development of the mortality of the population in the Czech Republic from 1950. In the past the life expectancy was gradually increasing. This means that there was a gradual improvement in mortality. On the basis of projections of future development we may assume that there will be an improvement in mortality. It will be increasingly important to have the best idea about mortality in individual matters. In our study we are focussing on the analysis of the development of the life expectancy at an exact age x. The life expectancy is not the sole characteristic of length of life. The second indicator is the normal length of life, which is also a very frequently used indicator. For the equalisation of specific mortality rates we use what is so far the most-used Gompertz-Makeham model. An important part of the article will be the comparison of the development of the life expectancy and normal length of life for the whole period. In a further part we will carry out a comparison of various methods of estimating the normal length of life. We will publish the results separately for males and for females.