time

volume

200201

4487387

200202

4636017

200203

3886253

200204

3740883

200205

4254030

200206

3792758

200207

4068329

200208

4397453

200209

4650157

200210

4777869

200211

4151635

200212

4297646

200301

4640056

200302

4172716

200303

4055255

200304

3793732

200305

4396059

200306

4159307

200307

4695188

200308

4966636

200309

5077152

200310

5589592

200311

5079017

200312

5281733

200401

6004498

200402

5069120

200403

4822836

200404

4874786

200405

5898613

200406

4961167

200407

4782067

200408

5042892

200409

5280166

200410

6712719

200411

5698718

200412

5891143

200501

6903806

200502

6367398

200503

6033753

200504

5797632

200505

7515965

200506

6622230

200507

6793726

200508

7255075

200509

7212195

200510

9068514

200511

7530492

200512

8315007

200601

10418354

200602

8745606

200603

8718459

200604

8594101

200605

10856601

200606

8929362

200607

9399875

200608

10134558

200609

9868187

200610

12640370

200611

10106821

200612

10669675

200701

11545354

200702

12302974

200703

11284885

200704

9931538

200705

12659650

200706

11286870

200707

11896497

200708

12982266

200709

12892549

200710

15344624

200711

11971016

200712

13040496

200801

13753309

200802

13502189

200803

13451028