2019 1
- January 1
2018 3
- May 1
- January 2
  - The "can you believe it" Chapter
  - For the Curious
2017 8
- December 1
- November 1
- September 1
- July 3
- May 1
- January 1
2016 3
2015 4
- October 1
- August 1
- April 1
- March 1
2014 15
- December 1
- October 1
- September 2
- August 3
- June 1
- May 2
- April 2
- February 1
- January 2
2013 17
- December 1
- November 1
- October 2
- August 1
- July 3
- June 2
- May 1
- April 2
- March 1
- February 1
- January 2
2012 28
- December 3
- October 2
- September 1
- August 3
- July 1
- June 1
- May 4
- April 2
- March 1
- February 6
- January 4
2011 62
- December 4
- November 3
- October 5
- September 4
- August 6
- July 3
- June 5
- May 5
- April 7
- March 6
- February 7
- January 7
2010 52
- December 5
- November 5
- October 5
- September 5
- August 7
- July 3
- June 1
- May 3
- April 6
- March 5
- February 3
- January 4
2009 35
- December 4
- November 3
- October 2
- September 3
- August 2
- July 3
- June 2
- May 4
- April 2
- March 3
- February 4
- January 3
2008 29

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