The Dow Jones industrial average has blown through 1,000-point milestones since hitting a 12-year low of 6,547 on March 9, 2009. Here are the dates of those milestones and the time between each.

— First close above 7,000 after hitting the 12-year low: March 12, 2009.

— First close above 8,000: April 3, 2009. Trading days since last milestone: 16.

— First close above 9,000: July 23, 2009. Trading days since last milestone: 76.

— First close above 10,000: Oct. 14, 2009. Trading days since last milestone: 58.

— First close above 11,000: April 12, 2010. Trading days since last milestone: 122.

— First close above 12,000: Feb. 1, 2011. Trading days since last milestone: 205.

— First close above 13,000: Feb. 28, 2012. Trading days since last milestone: 270

— First close above 14,000: Feb. 1, 2013. Trading days since last milestone: 233

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Source: S&P Dow Jones Indices