Statewide Ballot Measures: 1919–2020 (PDF)
Ballot Measure Overview & Statistics (description of the requirements
for approval for each type of question; total number of each type of binding
question appearing on the ballot since 1919 and the number of each type
approved)
Ballot Measures by Type of Question
Number of Ballot Measures by Year (PDF)
Information included: date of state election; total votes cast; description and type of ballot question; total number of yes, no and blank votes; percentage of total voters voting on questions.