What voting system did the Weimar parliament use?

The Weimar Republic, which was the democratic government of Germany from 1919 to 1933, used a voting system known as proportional representation. Here are the steps explaining how it worked:

1. The country was divided into multiple voting districts.
2. Each political party presented a list of candidates for each district.
3. Citizens voted for a party, not for a specific candidate.
4. The number of seats a party received in the parliament (Reichstag) was proportional to the number of votes it received. For example, if a party received 30% of the votes, it would get roughly 30% of the seats.
5. The candidates from each party that filled the seats were taken from the top of the party's list.

This system was designed to be very democratic and allow for a wide range of political parties to be represented. However, it also led to a very fragmented parliament with many small parties, making it difficult to form stable governments.