Binary package “gretl-data” in ubuntu jammy

GNU Regression, Econometric & Time-Series Library -- data package

 The GNU Regression, Econometric and Time-Series Library (gretl) is a
 software package for econometric analysis. The package comprises a
 shared library, a command-line client program, and a graphical client
 built using GTK+.
 .
 This package provides data sets (included in the gretl sources) which are
 used by the main gretl program.