Months

Monthly average flows before 2005

Monthly average flows after 2005

Relative difference

Jan

426

631

326

Feb

409

641

309

March

385

636

285

April

396

652

296

May

401

660

301

June

397

605

297

July

399

596

299

August

370

584

270

Seven

356

598

256

Oct

380

638

280

Nov

418

682

318

Dec

421

689

321