Question: What proportion of California residents supported creation of a bioregion and proposed country in western region of North America.
Sentence (from "Partition and secession in California"): California, the most populous state in the United States and third largest in area, has been the subject of more than 220 proposals to divide it into multiple states since its admission to the United States in 1850 including at least 27 significant proposals in the first 150 years of statehood.
Relevant evidence: No