The tables below show the sources of funding for a public library system in 2010 and 2020, with projections for 2030, and the percentage of its annual budget allocated to four areas in those years.

The tables compare the three sources of funding for a public library system and the proportion of its yearly budget allocated to four types of expenditure in 2010 and 2020, followed by projections for 2030. Overall, the total annual budget for the library system increased over the first decade and is expected to continue rising […]