2004

January 0

February 0

March 341

April 519

May 426

June 692

July 654

August 620

September 509

October 461

November 453

December 544

2005

January 647

February 582

March 675

April 562

May 588

June 191

July 227

August 527

September 475

October 493

November 459

December 284

2006

January 636

February 630

March 629

April 510

May 552

June 460

July 494

August 521

September 444

October 539

November 529

December 366

2007

January 509

February 515

March 461

April 477

May 571

June 513

July 440

August 473

September 439

October 560

November 463

December 401

2008

January 524

February 472

March 562

April 81

May 10

June 4

July 6

August 1

September 1

October 0

November 0

December 1

2009

January 0

February 0

March 0

April 0

May 0

June 0

July 0

August 0

September 0

October 0

November 0

December 0