Chart 7. Percent change in intracity mass-transit expenditure by highest level of education in the consumer unit, 2018–21
Level of education	2018–19	2019–20	2020–21
Less than high school graduate	34.3	-45.3	23.3
High school graduate	2.9	-50.4	44.8
High school graduate with some college	9.9	-39.6	-0.2
Associate's degree	67.1	-24.4	-59.2
Bachelor's degree	10.3	-65.6	49.4
Master's, professional, or doctoral degree	-27.2	-59.6	13.7
Source: U.S. Bureau of Labor Statistics.