Cratering

month

2012 2013

January 52
February 72
March 85
April 70
May 24
June
July
August
September
October
November
December

2011 2012 2013

January 61
February 57
March 74
April 69
May 57
June 71
July 61
August 66
September 55
October 68
November 69
December 47

2010 2011 2012

January 61
February 68
March 87
April 90
May 96
June 89
July 77
August 64
September 53
October 63
November 68
December 89

2009 2010 2011

January 13
February 24
March 35
April 25
May 23
June 28
July 22
August 27
September 26
October 25
November 32
December 47

2009 2010

January
February 1
March
April
May
June 2
July 3
August 7
September 5
October 13
November 9
December 21

June 2009

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