|#||Reference||Type of survey||Number of stars|
|1||Sousa et al. (2008)||F-G-K stars, old, not very active, exoplanet survey||294|
|2||Ramírez et al. (2014)||Solar twins, old and young stars||64|
|3||Marsden et al. (2014)||Solar-type stars, old and young (Bcool survey)||31|
|4||Datson et al. (2014)||Solar twins||5|
|5||Borgniet et al. (2017)||F stars, old stars, exoplanet survey||6|
|6||Lagrange et al. (2013)||Young stars, exoplanet survey||8|
|7||Gray et al. (2015)||Young solar twins||4|
Notes. Number of stars retrieved from these surveys to build our sample.
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