California's voters approved higher income and capital gains tax rates on the state's wealthiest residents to increase K-12 school funding: Proposition 30 passed in 2012 (and was extended in 2016 with Proposition 55) which raised tax rates on income and capital gains over $250,000 for single filers and $500,000 for joint filers, with most of the resultant revenue going to schools. These measures have significantly closed the K-12 spending gap between California and the national average. Pupil-teacher ratios have decreased since the passage of Proposition 30. California K-12 public school teachers earned the second-highest average salaries amongst teachers of all states in 2019.