Twitter said that all user tweets, if printed, would stack up to the same height as Taipei 101, the second-tallest building in the world. (Maurice Tsai/Bloomberg)

According to stats released by Twitter on Thursday, users send 200 million tweets per day, or the equivalent of a 10 million-page book.

Or, to put it a different way, Twitter said that amounts to 8,163 copies of Leo Tolstoy’s War and Peace, which, when stacked, would be about the same height as Taipei 101, the second-tallest building in the world.

It’s not clear how many of those tweets come from active users and how many come from spam bots, but it’s an interesting statistic nonetheless.

The company also put out statistics on the most-tweeted topics of the first half of 2011.

In the world events and news category, swine flu was the most buzzed-about topic, followed by former Egyptian president Hosni Mubarak, Easter, Cairo and tweets about the March earthquake in Japan.

In pop culture, Rebecca Black topped the list, but Charlie Sheen snagged two of the top-five slots with tweets about him as well as those using his signature hashtag, #tigerblood. Britney Spears’s album “Femme Fatale” and rapper Nate Dogg also made the list.

One event that didn’t make either top 10 list? The capture of Osama bin Laden, which reportedly set a new record for sustained rate of tweets, with 3,000 people sending messages on the network every second.

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