The average age of candidates has clearly gone down since the 1970s. In 1971, for example, the average age was 46, while in 2000 it had gone down to around 40 or 41. FDP candidates had the lowest average age at 37 years old.
Lower average ages among candidates have come mainly at the expense of 40- to 59-year-olds. The number of candidates over the age of 60, on the other hand, has been going up slightly.
The table below provides more detailed information on the number and average age of candidates from the various political parties during the last National Council election in 2019.
Fonte: UST – Statistica di elezioni  UST 2019