Economic Crisis, Spanish TC Sentence and Preferences for Secession

What drives preferences for secession in Catalonia, (i) the economic crisis or (ii) the Spanish TC sentence?

The graph below illustrates the % of support for secession in Catalonia as the most preferred option under different scenarios (Data: Centre d'Estudis d'Opinió, CEO).

Caveat: it is true that we don't know how the preferences would look like in a 4th scenario, with the Spanish TC sentence but without the economic crisis.

However, the graph below suggests that the structural break in the evolution of the support for secession is actually more related to the Spanish TC sentence than to the economic crisis.