Chart C-4. Parameter estimates over time: wireless telephone services, January 2019–December 2022
Month Provider 2 Prepaid account Number of lines ln(amount of high-speed data) Unlimited data plan

January 2019

-0.302 -0.484 0.244 0.179 0.539

February 2019

-0.364 -0.487 0.245 0.193 0.492

March 2019

-0.320 -0.484 0.249 0.192 0.486

April 2019

-0.261 -0.472 0.250 0.172 0.412

May 2019

-0.319 -0.468 0.248 0.176 0.427

June 2019

-0.295 -0.458 0.249 0.177 0.428

July 2019

-0.303 -0.457 0.248 0.178 0.433

August 2019

-0.262 -0.477 0.227 0.156 0.364

September 2019

-0.284 -0.478 0.223 0.155 0.368

October 2019

-0.232 -0.478 0.223 0.155 0.368

November 2019

-0.217 -0.444 0.218 0.158 0.385

December 2019

-0.193 -0.442 0.216 0.153 0.388

January 2020

-0.193 -0.445 0.216 0.153 0.385

February 2020

-0.172 -0.415 0.215 0.146 0.410

March 2020

-0.167 -0.397 0.214 0.145 0.434

April 2020

-0.141 -0.522 0.216 0.156 0.468

May 2020

-0.213 -0.554 0.202 0.164 0.499

June 2020

-0.218 -0.477 0.208 0.166 0.442

July 2020

-0.226 -0.414 0.217 0.155 0.405

August 2020

-0.289 -0.512 0.206 0.200 0.557

September 2020

-0.345 -0.492 0.214 0.199 0.546

October 2020

-0.225 -0.476 0.227 0.180 0.445

November 2020

-0.245 -0.523 0.224 0.196 0.487

December 2020

-0.239 -0.567 0.226 0.190 0.470

January 2021

-0.248 -0.565 0.227 0.188 0.478

February 2021

-0.240 -0.565 0.226 0.190 0.472

March 2021

-0.411 -0.566 0.224 0.193 0.519

April 2021

-0.412 -0.567 0.224 0.194 0.519

May 2021

-0.422 -0.525 0.223 0.200 0.538

June 2021

-0.423 -0.516 0.223 0.201 0.542

July 2021

-0.408 -0.474 0.226 0.190 0.505

August 2021

-0.407 -0.662 0.227 0.164 0.545

September 2021

-0.357 -0.656 0.238 0.157 0.521

October 2021

-0.434 -0.491 0.226 0.198 0.610

November 2021

-0.434 -0.492 0.226 0.198 0.610

December 2021

-0.459 -0.542 0.223 0.214 0.657

January 2022

-0.425 -0.427 0.228 0.203 0.632

February 2022

-0.396 -0.438 0.229 0.194 0.674

March 2022

-0.398 -0.433 0.232 0.193 0.657

April 2022

-0.437 -0.531 0.231 0.217 0.726

May 2022

-0.395 -0.507 0.233 0.218 0.757

June 2022

-0.393 -0.517 0.233 0.218 0.757

July 2022

-0.393 -0.517 0.233 0.218 0.757

August 2022

-0.386 -0.546 0.228 0.216 0.716

September 2022

-0.384 -0.558 0.229 0.214 0.738

October 2022

-0.384 -0.559 0.229 0.214 0.737

November 2022

-0.381 -0.548 0.234 0.221 0.767

December 2022

-0.363 -0.448 0.235 0.199 0.695

Source: U.S. Bureau of Labor Statistics.