Passage: Vilnius University Library or VU Library (also VUL) is the oldest and one of the largest academic libraries of Lithuania. It was founded in 1570 by the Jesuits and as such is nine years older than Vilnius University. VU Library holds 5.4 million documents on shelves measuring 166 kilometres (103 mi) in length. The holdings, accessible to members of the university and wider public, include some of the oldest manuscripts, incunabula and engravings in Lithuania and Eastern Europe. At present the library has 36 thousand users.

Question: How many documents does the VU Library hold?
5.4 million