Adolescence /ˌæd

ageing , US usually aging /ˈeɪ.dʒɪŋ/ adjective
1. relating to getting older
the ageing process
2. describes a person or thing that is getting old
an ageing Hollywood actor ageing computers/machinery
current /ˈkʌr. ə nt/ /ˈkɝː-/ adjective
of the present time
Have you seen the current issue of (= the most recently published) Vogue magazine?
The word 'thou' (= you) is no longer in current use .
demography /dɪˈmɒg.rə.fi/ /-ˈmɑː.grə-/ noun [ U ]
1. the study of changes in the number of births, marriages, deaths, etc. in a particular area during a period of time historical demography
2. The demography of an area is the number and characteristics of the people who live in an area, in relation to their age, sex, whether they are married or not, etc.
The increase in the number of young people leaving to work in the cities has had a dramatic impact on the demography of the villages.
demographic /ˌdem.əˈgræf.ɪk/ adjective
There have been monumental social and demographic changes in the country.
Current demographic trends suggest that there will be fewer school leavers coming into the workforce in ten years' time.