By Gillian Roberts and Kaanita Iyer, CNN

(CNN) — The US federal government remains shut down with a spending deal to reopen still out of reach on Capitol Hill. Here’s how long the current shutdown has been going on:

The last time the government shut down — which started on December 22, 2018, and went until January 25, 2019 — it lasted 35 days, making it the longest in history. It cost the United States an estimated $3 billion in lost GDP, according to the Congressional Budget Office.

Here are all the government shutdowns since 1981

US agencies were first instructed in the early 1980s to stop normal operations during government funding lapses, and resume operations when Congress appropriated more money. The first federal government shutdown happened in 1976, according to CNN research.

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