Legal Origin

La Porta, Rafael, Florencio Lopez-de-Silanes, Andrei Shleifer, and Robert W. Vishny (1999) "The Quality of Government," Journal of Law, Economics, & Organization, 15(1), pp.222-279. (Appendix B prints out the data)

This data is downloadable at Andrei Shleifer's website.

A slightly modified version (if I understand correctly) is available as the dataset for

La Porta, Rafael, Florencio Lopez-de-Silanes, and Andrei Shleifer. 2008. “The Economic Consequences of Legal Origins.” Journal of Economic Literature 46(2): 285–332.

This data is also downloadable at Andrei Shleifer's website.