UPDATED | New York City public schools were, over all, slightly more crowded last year than the year before. But those overall figures are not really meaningful to the thousands of students who attend schools that are way over capacity. Here is a breakdown of the data by district; borough and school type, and the 100 schools that have the highest rates of utilization.

A look at how charter schools did on the recent school progress reports shows that they did poorly in the progress category but well on environment and performance.

Part of what the annual school progress reports reveal are the schools that are subject to revamping or closing. But the reports can also show which schools are excelling, which are most improved, which are persistently failing, which exhibited the greatest student progress and which are inching up — among many other measures. Here are some lists that SchoolBook has compiled based on schools’ progress reports.

Do you want to know how attendance relates to student test performance? How many students in the New York City schools were born in Guyana compared to those born in India? Or maybe you want to know how much the system spent on pensions. It’s all here, in the Independent Budget Office’s annual report.

A report released Thursday by the Census Bureau compares worker earnings in several demographic categories and concludes that education correlates with future prosperity more than any other characteristic.

What’s behind SchoolBook’s numbers? SchoolBook’s data reporter provides a detailed explanation of how we have crunched the numbers; a glossary of terms; a discussion of the limitations of our system; and a preliminary list of frequently asked questions (and answers).