Table 2 Final search queries

2009-09-27

CDU + CSU + Angela Merkel; SPD + Frank Walter Steinmeier; Grüne + Jürgen Trittin + Renate Künast; Linke + Gregor Gysi; FDP + Guido Westerwelle

2013-09-22

c(“CDU + CSU + Angela Merkel”, “SPD + Peer Steinbrück”, “Jürgen Trittin + Katrin Göring Eckardt + Grüne + ”, “Linke + Sarah Wagenknecht + Gregor Gysi”, “FDP + Philipp Rösler”); c(“Bernd Lucke + Afd”, “CDU + CSU + Angela Merkel”, “SPD + Peer Steinbrück”, “Jürgen Trittin + Katrin Göring Eckardt + Grüne”, “FDP + Philipp Rösler”)

2017-09-24

c(“CDU + CSU + Angela Merkel”, “SPD + Martin Schulz”, “Cem Özdemir + Katrin Göring Eckardt + Grüne”, “Linke + Sarah Wagenknecht + Dietmar Bartsch”, “FDP + Christian Lindner”); c(“Alice Weidel + Alexander Gauland + Afd”, “CDU + CSU + Angela Merkel”, “SPD + Martin Schulz”, “Cem Özdemir + Katrin Göring Eckardt + Grüne”, “FDP + Christian Lindner”)

2021-09-26

c(“CDU + CSU + Armin Laschet”, “SPD + Olaf Scholz”, “Annalena Baerbock + Grüne”, “Linke + Janine Wissler + Dietmar Bartsch”, “FDP + Christian Lindner”); c(“Alice Weidel + Tino Chrupalla + Afd”, “CDU + CSU + Armin Laschet”, “SPD + Olaf Scholz”, “Annalena Baerbock + Grüne”, “FDP + Christian Lindner”)