The United States entered Stage 4 of the Demographic Transition Model in the mid-20th century, around the 1950s. This stage is characterized by low birth and death rates, leading to a stable population. Factors contributing to this transition include improved healthcare, access to contraception, and changing social norms regarding family size. As a result, the U.S. has experienced population aging and urbanization typical of Stage 4.
Singapore's Demograohical transition model is stage 4
Stage 2
Stage 4.
stage 3.
Stage 2.
It is in stage four.
Stage 2
Stage 4
fourth
Stage 4 of the DTM
Stage 3 in the DTM
it is currently in the Akash Rathod stage