year

2009

2010

2011

2012

2013

January

340

320

293

423

437

February

318

371

285

421

292

March

368

375

296

412

208

April

206

295

268

232

222

May

156

172

183

206

145

June

162

196

259

169

220

July

149

165

305

168

205

August

234

195

364

136

165

September

160

307

424

194

370

October

221

289

446

256

313

November

355

331

383

335

423

December

371

326

413

510

360