However the international music industry body the IFPI was highly critical of the research.
The International Federation of the Phonographic Industry (IFPI) said the research was "flawed and misleading".
"Our markets remain rigged by illegal free music, " said IFPI chief executive Frances Moore.
IFPI, has been slow to compete with these pirate services in making music available online.
According to the International Federation of the Phonographic Industry (IFPI), Mexico is the 16th largest digital music market in the world.
The IFPI report covers only a subset of the online music universe.
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The song was also the third best-selling single of the year, according to the IFPI, and has helped boost the financial fortunes of YG.
The IFPI, an industry body, says that the number of legitimate download sites has surged, and there were over 200m legal music downloads in 2004.
Spotify is now the second single largest source of digital music revenue for labels in Europe (IFPI, April 2011), making sure that artists get a fair deal.
Despite being the world's second largest economy, China ranks 20th globally in terms of recorded music revenue, according to the I nternational Federation of the Phonographic Industry (IFPI).
Although the music industry was showing signs of recovery, the IFPI said there were still "major hurdles that need to be addressed to unlock the huge potential for further growth".
While download services like iTunes provide roughly 70% of total digital-music revenue, the IFPI report found rapid growth in subscription- and advertising-based streaming services, which had 20 million paid subscribers in 2012.
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In the first half of 2004 (the latest period for which figures are available) the value of sales fell by 1.3% compared with the first six months of 2003, according to the IFPI, a recording industry body, largely thanks to piracy.
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