"Did the parliament used to sit with the same frequency before air travel?"

Hi Margaret. Thanks for your question.

In 2020, the Australian Parliament met for:

This was higher than 2019 (40 for the Senate and 45 for the House) but less than in 2018 (58 for the Senate and 65 for the House).

The lowest number of sitting days in a year was in 1937. In that year the Senate met for only 27 days and the House of Representatives met for 29 days.

The highest number of sitting days in a year was 122 in 1920 for the House of Representatives and 93 for the Senate in 1902. 

You can find a historical overview of sitting days on the Australian Parliament House website.

diagram to help explain Did the parliament used to sit with the same frequency before air travel?