WTA Premier tournaments

Columns: Tournament | Officially known as | City ( s ) | Country | Surface | Prize ( US $ ) | Current singles champion
Brisbane | Brisbane International | Brisbane | Australia | Hard | 1,000,000 | Karolína Plíšková ( 2020 ) | Adelaide | Adelaide International | Adelaide | Australia | Hard | 848,000 | Ashleigh Barty ( 2020 ) | St. Petersburg | St. Petersburg Ladies ' Trophy | St. Petersburg | Russia | Hard ( i ) | 823,000 | Kiki Bertens ( 2019 ) | Dubai | Dubai Tennis Championships | Dubai | United Arab Emirates | Hard | 2,828,000 | Belinda Bencic ( 2019 ) | Doha | Qatar Total Open | Doha | Qatar | Hard | 916,131 | Elise Mertens ( 2019 ) | Indian Wells | BNP Paribas Open | Indian Wells | United States | Hard | 9,035,428 | Bianca Andreescu ( 2019 ) | Miami | Miami Open | Miami Gardens | United States | Hard | 9,035,428 | Ashleigh Barty ( 2019 )

Example questions:
What is the official tournament name of the WTA premier event held in Baden-Württemberg ? | Who was the champion for the WTA tournamnent held at the Khalifa International Tennis and Squash Complex ? | What is the birth year of the WTA Brisbane tournament champion ? | Which WTA premier tournament was won by the player born on 24 April 1996 ? | What type of surface was played on at a WTA tournament in the most populous city of Spain ?

Answers:
Porsche Tennis Grand Prix | Elise Mertens | 1992 | Miami Open | clay