How people move
The same people measured about four years apart in the Health and Retirement Study. Arrows show where people starting at each level end up on average.
Each arrow starts at the average level of one tenth of people (by starting value) and ends at where that group is on average about four years later. Arrows pointing inward mean drift back toward the middle. Part of that drift is measurement noise: see Stability.
Changing rank
Out of each fifth of the population (by sex and five-year age band), the share found in each fifth at the next measurement. A strong diagonal means people keep their rank.