| Characteristic | 2017 | 2018 | 2019 | 2020 | 2021 |
|---|---|---|---|---|---|
| - | - | - | - | - | - |
| - | - | - | - | - | - |
| - | - | - | - | - | - |
| - | - | - | - | - | - |
| - | - | - | - | - | - |
| - | - | - | - | - | - |
| - | - | - | - | - | - |
| - | - | - | - | - | - |
| - | - | - | - | - | - |
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Source
Source
Release date
September 2021
More information
Region
North America
Survey time period
2017 to 2021
Number of respondents
185 respondents
Special properties
Building service contractors/commercial cleaning providers
Supplementary notes
Survey method and exact date of survey were not provided by the source.
Values prior to 2019 were taken from previous editions.
2017 baseline: 221 respondents
2018 baseline: 278 respondents.
2019 baseline: 497 respondents.
2020 baseline: 325 respondents
Citation formats
