DHT over lifespan

Does anyone happen to know how DHT levels
progress over lifespan. For example, if you
where to chart DHT levels from say, age 20
to age 100, would DHT go up, down, or stay
constant? Most hormones change with age - eg
T decreases, estrogen increases, etc. Since
T decreases with age I would think that DHT
would also decrease. However the is a higher
correlation of baldness in older men, and DHT
is proposed as one causal factor in male hair
loss. Without knowing the exact numbers, these
two observations lead me to conflicting
conclusions as to how DHT levels change with
age. If anyone could provide an answer to this
I’d appreciate it.