Retail sales in major cities by industry.
Colorado Department of Revenue
REV1/30.25/INTERNET
Library has 2016-
2021
| January | February | March | April |
| May | June | July | August |
| September | October | November (see December) | December |
2020
| January | February | March | April |
| May | June | July | August |
| September | October | November | December |
2019
| January | February | March | April |
| May | June | July | August |
| September | October | November | December |
2018
| January | February | March | April |
| May | June | July | August |
| September | October | November | December |
2017
| January | February | March | April |
| May | June | July | August |
| September | October | November | December |
2016
| January | February | March | April |
| May | June | July | August |
| September | October | November | December |