- Data only includes miles travelled on county roads. It does not include miles travelled on city, state or federal roads and highways.
- Lack of a visible bar can occur when the number is so small the result is a bar less than one pixel in height.
| Data for the Gray County Road Miles Chart |
|---|
| Calendar Year | Number of All Vehicle Miles | Change from Prior Year | Number of Truck Miles | Change from Prior Year |
|---|
| 2005 | 23,374.605 | N/A | 0.003 | N/A |
| 2006 | 23,851.375 | 2.0% | 13.672 | 455,633.3% |
| 2007 | 23,851.375 | 0.0% | 13.672 | 0.0% |
| 2008 | 23,903.770 | 0.2% | 15.778 | 15.4% |
| 2009 | 23,903.770 | 0.0% | 15.780 | 0.0% |
| 2010 | 17,061.480 | -28.6% | 545.967 | 3,359.9% |
| 2011 | 16,735.756 | -1.9% | 535.544 | -1.9% |
| 2012 | 16,735.756 | 0.0% | 535.544 | 0.0% |
| 2013 | 16,736.976 | 0.0% | 535.583 | 0.0% |
| 2014 | 16,739.566 | 0.0% | 535.666 | 0.0% |
| 2015 | 14,924.746 | -10.8% | 477.592 | -10.8% |
| 2016 | 14,924.746 | 0.0% | 477.592 | 0.0% |
| 2017 | 14,956.936 | 0.2% | 198.991 | -58.3% |
| 2018 | 98,836.950 | 560.8% | 2,875.420 | 1,345.0% |
| 2019 | 99,042.579 | 0.2% | 3,257.206 | 13.3% |
| 2020 | 15,647.368 | -84.2% | 629.619 | -80.7% |
| 2021 | 15,764.842 | 0.8% | 633.217 | 0.6% |
| 2022 | 16,549.587 | 5.0% | 250.446 | -60.4% |