Here you will find the data from previous rounds of expert surveys:

2006 / 2007
Policy positions of 146 political parties and 18 presidents in 18 Latin American countries. The survey measured policy positions on genera ldimensions such as economic or social policy, but also on specific dimensions such as minority rights or security questions.
Countries covered are Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, the Dominican Republic, Uruguay and Venezuela.
Citation: Nina Wiesehomeier and Kenneth Benoit (2009). ‘Presidents, Parties and Policy Competition.’ Journal of Politics, 71 (4), 1435-1447

2011
This pilot study introduced a dimension of political appeals / populist rhetoric in addition to policy positions on policy dimensions and the general left-rightfor 47 political parties and 4 presidents.
Countries covered are Argentina, Bolivia, Brazil, and Chile.
Citation: Nina Wiesehomeier (2018). ‘Expert Surveys’. In Kirk Hawkins, Ryan Carlin, Levente Littvay, and Cristóbal Rovira Kaltwasser (eds.), The Ideational Approach to Populism: Concept, Theory, and Analysis, Routledge, 90-111

2015
Policy positions of 165 political parties and 18 presidents in 18 Latin American countries. Subdimensions of populist rhetoric,
Countries covered are Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, the Dominican Republic, Uruguay and Venezuela.
Citation: Nina Wiesehomeier (2018). ‘Expert Surveys’. In Kirk Hawkins, Ryan Carlin, Levente Littvay, and Cristóbal Rovira Kaltwasser (eds.), The Ideational Approach to Populism: Concept, Theory, and Analysis, Routledge, 90-111