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| Company | Unit | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
| Apple Inc. | % | ... | ... | ... | ... | ... | 9.85 | 11.4 | 11.6 | 12.2 | 13.2 | ||||||
| Badger Meter | % | 24.7 | 25.3 | 24.6 | 24.3 | 23.9 | |||||||||||
| Broadcom | % | 28.2 | 47.3 | 33.6 | 30.8 | 39.4 | |||||||||||
| CalAmp | % | ... | ... | ... | ... | ... | 24.2 | 37.8 | 40.8 | 39.2 | 39.4 | ||||||
| Digi International | % | ... | ... | ... | ... | ... | 41.6 | 40.7 | 45.9 | 43.5 | 45.5 | ||||||
| Hubbell | % | 18.2 | 17.6 | 17.3 | 16.6 | 16.5 | |||||||||||
| Itron | % | ... | ... | ... | ... | ... | 26.7 | 28.0 | 25.9 | 32.8 | 24.8 | ||||||
| KORE | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | |
| PTC | % | ... | ... | ... | ... | ... | 74.4 | 72.8 | 67.6 | 68.0 | 68.8 | ||||||
| Samsara | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 250 | ||
| Sensata Technologies | % | ... | 20.3 | 19.5 | 18.5 | 15.5 | 18.2 | ||||||||||
| Sierra Wireless | % | ... | ... | ... | ... | ... | 30.2 | 31.9 | 33.9 | 35.6 | 47.8 |
Helgi Library 
