On November 21, 1995, the DJIA closed above the 5,000 level (5,023.55) for the first time. Over the following two years, the Dow would rapidly tower above the 6,000 level during the month of October in 1996, and the 7,000 level in February 1997. On its march higher into record territory, the Dow easily made its way through the 8,000 level in July 1997. However, later in that year during October, the events surrounding the 1997 Asian financial crisis plunged the Dow into a 554-point loss to a close of 7,161.15; a retrenchment of 7.18% in what became known as the October 27, 1997 mini-crash. Although internationally there was negativity surrounding the 1998 Russian financial crisis along with the subsequent fallout from the 1998 collapse of the derivatives Long-Term Capital Management hedge fund involving bad bets placed on the movement of the Russian ruble, the Dow would go on to surpass the 9,000 level during the month of April in 1998, making its sentimental push towards the symbolic 10,000 level. On March 29, 1999, the average closed above the 10,000 mark (10,006.78) after flirting with it for two weeks. This prompted a celebration on the trading floor, complete with party hats. The scene at the exchange made front-page headlines on many U.S. newspapers such as The New York Times. On May 3, 1999, the Dow achieved its first close above the 11,000 mark (11,014.70). Total gains for the decade exceeded 315%; from the 2,753 level to 11,497.
Question: How many months after closing at 8,000 did the Dow close at 9,000?
Answer: 9