Chile
| Year | Electoral system family | Electoral system for national legislature | Number of tiers | Legislative size (directly elected) | Legislative size (voting members) | Electoral system for the president |
|---|---|---|---|---|---|---|
| 2025 | PR | List PR | 1 | 155 | 155 | TRS |
| 2021 | PR | List PR | 1 | 155 | 155 | TRS |
| 2017 | PR | List PR | 1 | 155 | 155 | TRS |
| 2013 | PR | List PR | 1 | 120 | 120 | TRS |
| 2009 | PR | List PR | 1 | 120 | 120 | TRS |
| 2005 | PR | List PR | 1 | 120 | 120 | TRS |
| 2001 | PR | List PR | 1 | 120 | 120 | TRS |
| 1999 | PR | List PR | 1 | 120 | 120 | TRS |
| 1997 | PR | List PR | 1 | 120 | 120 | TRS |
| 1993 | PR | List PR | 1 | 120 | 120 | TRS |
