Think you know D.C.? We bet you don’t know it well enough to know how many streetlights there are, or how much of its land can’t be taxed. If you don’t, read on.

Yesterday’s publication of the District’s Comprehensive Annual Financial Report — a yearly audit of the city’s budget — may seem boring to most, but to others it’s 187 pages worth of fun facts and trivia. Since we don’t wish the reading of the report upon anyone else, we’ve culled some of the more interesting tidbits from its many tables, charts and indecipherable paragraphs:

• From 2007 to 2011, personal income in D.C. grew 17.2 percent, as compared to 8.5 percent nationally. That being said, 18.7 percent of the District’s population was below the poverty line in 2010, compared to 14.4 percent nationally.
• In 2010, the District’s 604,912 residents took in $42 billion worth of personal income.
• We may knock tourists, but we should probably thank them too — in 2010, they kicked in $5.69 billion in local spending.
• Five of the 13 top employers in the District are universities — Georgetown University leads the charge, both amongst universities and all employers generally. Five of the other big employers are hospitals, three of which are associated with universities.
• The Metropolitan Police Department has 1,095 cars, while D.C. Fire and EMS have 34 stations, 123 front-line emergency vehicles (firetrucks) and 89 ambulances.
• The District has 70 garbage trucks.
• There are 126 miles of primary streets, 1,007 miles of secondary streets, 68,000 street lights, 1,603 signalized intersections and 144,000 trees in the District.
• We’ve got 1,300 miles of water mains and 1,800 miles of sewer mains.
• There’s $139 billion worth of taxable property — both commercial and residential — in the District. That’s down from $150 billion in 2010.
• There’s more tax-exempt property ($81.5 billion) in the District than there is taxable residential property ($80 billion). The International Finance Corporation leads the charge, with property worth $505 million that we can’t tax. Other big untaxables include Georgetown University ($339 million), the IMF (two sets of property valued at $298 and $294 million, respectively) and the Newseum ($243 million).
• Though only 15 percent of tax filers in the District make over $100,000, they kick in 71 percent of all tax revenue. That’s up significantly from 2002, when they made up less than 10 percent of all filers and accounted for 56 percent of tax revenues.
• The smallest group of tax filers? Those making between $75,000 and $100,000 — there’s only 24,515 of those, or seven percent of all filers. The largest? Those making between $25,001 and $50,000 — there are 79,131 of those, accounting for close to 24 percent of all filers.
• The District’s outstanding debt exceeds $7 billion, or over $12,000 per resident.