2004

January 0

February 0

March 170

April 512

May 478

June 461

July 449

August 432

September 470

October 425

November 385

December 347

2005

January 478

February 442

March 504

April 491

May 413

June 184

July 168

August 434

September 439

October 397

November 426

December 267

2006

January 587

February 407

March 461

April 355

May 397

June 361

July 37

August 15

September 18

October 7

November 8

December 2

2007

January 2

February 1

March 0

April 1

May 2

June 2

July 1

August 0

September 0

October 2

November 1

December 0

2008

January 0

February 0

March 0

April 0

May 0

June 0

July 0

August 0

September 0

October 0

November 0

December 0