| 2011 |  #1 Sep |
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| 2012 |  #2 Feb |
 #3 May |
 #4 Sep |
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| 2013 |  #5 Jan |
 #6 May |
 #7 Sep |
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| 2014 |  #8 Jan |
 #9 May |
 #10 Sep |
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| 2015 |  #11 Jan |
 #12 May |
 #13 Sep |
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| 2016 |  #14 Jan |
 #15 May |
 #16 Sep |
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| 2017 |  #17 Jan |
 #18 May |
 #19 Sep |
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| 2018 |  #20 Jan |
 #21 May |
 #22 Sep |
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| 2019 |  #23 Jan |
 #24 May |
 #25 Sep |
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| 2020 |  #26 Jan |
 #27 May |
 #28 Sep |
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| 2021 |  #29 Jan |
 #30 Jun |
#31 Oct |