U.S. government shutdown by the numbers

The partial government shutdown in the U.S. hasforcedfederal workers off the job and caused the suspension of all but essential government services. Here's a look at the standoff and its effects, by the numbers.

800,000 federal workers:Most nonessential federal programs and services are being suspended, meaning about 800,000 workersincluding 400,000 Defence Department civilians have been temporarily forced off the job. Employees will receive an official email Tuesday explaining whether or not they are essential or slated to be furloughed.

17 government services: It's difficult to enumerate the many waysthe shutdown will affect Americans,but the official U.S. government website specifically mentions 17 services thatwill be or could be affected. For example, there will beno new home loan guarantees, no new patients at the National Institutes of Health, and no newpassport applications during the shutdown. Many attractions are closed including the National Zoo and presidential libraries.Services the government says will be unaffected include air traffic control, military, prisons, border security, mail delivery, anything related to national security and public safety, social security cheques andemergency medical care.

401National Park Service sites shut down:These areas include the country's 59national parks, as well as monuments, battlefields, smaller parks, historic sites, lakeshores, seashores, recreation areas andscenic rivers and trails.

1 panda cam:The beloved panda cam at Washington's National Zoo has gone dark because ofthe government shutdown. Mother MeiXiangand her weeks-old cub had been a popular draw, but the camera was deemed non-essential and shut off at 8 a.m. Tuesday.

17 years:It's been that long since the last U.S. government shutdown. A pair of shutdowns in late 1995 and early 1996 happened during a standoff led byRepublican Speaker Newt Gingrich and then-president Bill Clinton. It severely damaged Republican election prospects and revived Clinton's political standing.

$1.4 billion:The cost to taxpayersof those mid-'90sshutdowns, according to the U.S. Office of Management and Budget.