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The 'light bulb' sign.
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Online download statistics by month: October 2008 to July 2022

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Oct 2008001
Nov 2008003
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Mar 2013007
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Mar 2015106
Apr 2015002
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Jul 2016002
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Oct 20160010
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Mar 2022001
Apr 2022005
May 2022007
Jun 2022002
Jul 2022002
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