2004

January 0

February 0

March 0

April 0

May 52

June 9

July 2

August 7

September 5

October 2

November 20

December 11

2005

January 19

February 14

March 12

April 19

May 21

June 4

July 5

August 10

September 4

October 14

November 17

December 12

2006

January 31

February 27

March 23

April 13

May 15

June 17

July 14

August 21

September 37

October 31

November 27

December 20

2007

January 18

February 7

March 2

April 17

May 34

June 40

July 20

August 39

September 11

October 16

November 35

December 14

2008

January 24

February 14

March 11

April 29

May 17

June 0

July 0

August 0

September 0

October 0

November 0

December 0