| County | Site | Units | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ashland | Bad River Tribal School | ppb | 45.7 | 40.9 | 38.7 | 36.6 | 35.2 | 36.3 | 38.3 | 41.4 | 45.5 | 50.1 | 52.5 | 55.5 | 59 | 61.4 | 63.3 | 64.6 | 65.6 | 66.1 | 65.8 | 62.4 | 58.7 | 54.5 | 49.7 | 43.9 |
| Brown | Green Bay UW | ppb | 54.3 | 52.9 | 51.9 | 51.4 | 51.3 | 51 | 49.4 | 47.7 | 46.3 | 46.2 | 46.8 | 47.7 | 49.5 | 52.1 | 56.3 | 60.6 | 64.1 | 66.1 | 67.3 | 67 | 65.4 | 63.2 | 61.2 | 59.6 |
| Columbia | Columbus | ppb | 54.4 | 53.3 | 52.7 | 52.1 | 51.7 | 51.2 | 50.9 | 50.2 | 49.9 | 50.1 | 50.6 | 51.8 | 53.1 | 54.6 | 56.4 | 59.1 | 61.5 | 62.5 | 62.6 | 62 | 61.1 | 60 | 58.8 | 57.5 |
| Dane | Madison East | ppb | 48.9 | 46.5 | 43.8 | 40.9 | 37.3 | 33.4 | 30.3 | 28.2 | 27.2 | 27.8 | 30.4 | 34.6 | 40.3 | 46.7 | 52.6 | 57.4 | 60.4 | 62.1 | 62.3 | 61.1 | 58.9 | 56.1 | 53.8 | 51.1 |
| Dodge | Horicon Wildlife Area | ppb | 57.3 | 57.2 | 57.4 | 57.4 | 57 | 56.6 | 55.5 | 54.4 | 53.7 | 52.8 | 53 | 53.9 | 55.2 | 57.1 | 59.5 | 61.6 | 63.4 | 64.9 | 65.1 | 64.3 | 62.7 | 61.3 | 59.1 | 56.7 |
| Door | Newport Park | ppb | 66.1 | 66 | 65.7 | 65.6 | 65.2 | 64.9 | 63.9 | 62.7 | 61.3 | 60 | 59.1 | 58.2 | 57.4 | 57.2 | 58.1 | 59.3 | 60 | 60.8 | 61.8 | 62.5 | 63.5 | 63.9 | 63.9 | 63.9 |
| Eau Claire | Eau Claire DOT Sign Shop | ppb | 47.5 | 43.2 | 37.7 | 32.5 | 27.8 | 22.3 | 19.7 | 20.5 | 22.3 | 26.1 | 31.7 | 38.7 | 46.6 | 55 | 61.9 | 65.8 | 68.1 | 69.3 | 69.9 | 68.4 | 62.9 | 56.1 | 48.4 | 40.5 |
| Fond du Lac | Fond Du Lac | ppb | 57.1 | 56.5 | 56.1 | 55.3 | 55 | 55 | 55 | 54.7 | 61.7 | 61.6 | 61.3 | 60.4 | 59.8 | 58.5 | 57.3 | 56.3 | ||||||||
| Forest | Potawatomi | ppb | 64.7 | 65 | 65.3 | 65.9 | 66.5 | 66.8 | 66.9 | 66.7 | 66.4 | 66.1 | 65.8 | 65.6 | 65.5 | 65.6 | 65.8 | 66 | 66.3 | 66.5 | 66.7 | 66.8 | 66.8 | 67 | 67.2 | 67.6 |
| Jefferson | Jefferson-Laatsch | ppb | 50.1 | 47.7 | 44.5 | 41.7 | 41.1 | 37.5 | 33.9 | 32.9 | 32.8 | 34 | 37 | 41.5 | 46.2 | 52.2 | 57.2 | 59.7 | 61.5 | 62.7 | 62.8 | 62.3 | 61.5 | 60.2 | 58 | 54 |
| Kenosha | Chiwaukee Prairie | ppb | 63.8 | 63.3 | 62.3 | 61.2 | 60.3 | 58.9 | 57.3 | 55.8 | 54.7 | 54.1 | 53.9 | 53.9 | 54.2 | 55.3 | 56.8 | 58.3 | 59.5 | 60.6 | 61.7 | 62.6 | 63.4 | 63.1 | 62.8 | 62 |
| Kenosha | Kenosha-Water Tower | ppb | 61.8 | 61.1 | 59.8 | 57.6 | 55.1 | 51.9 | 50.3 | 48.9 | 47.9 | 47.5 | 48 | 49.4 | 51.3 | 54 | 55.6 | 56.7 | 57.6 | 58.8 | 60.1 | 61 | 61.9 | 62.6 | 63 | 62.5 |
| Kewaunee | Kewaunee | ppb | 63.3 | 62.6 | 62 | 61.7 | 62 | 61.7 | 60.7 | 59.4 | 58.2 | 57.3 | 56.6 | 56.1 | 56.3 | 57 | 58.1 | 59.2 | 60.1 | 61 | 61.4 | 61.7 | 61.7 | 61.9 | 62.2 | 62.5 |
| La Crosse | La Crosse DOT | ppb | 42.9 | 37.6 | 32.8 | 29.2 | 24.5 | 21.1 | 18.7 | 17.4 | 17.1 | 18.4 | 21.8 | 26.1 | 32.7 | 39.1 | 45.7 | 51.8 | 57 | 61.2 | 63.1 | 63 | 61.6 | 58.7 | 54.1 | 49.3 |
| Manitowoc | Manitowoc | ppb | 47.2 | 43.2 | 39.4 | 35.5 | 32.3 | 29.9 | 28.7 | 28.6 | 28.9 | 28.4 | 28.1 | 65.6 | 65.4 | 64.9 | 64.1 | 62.2 | 60.1 | 57.7 | ||||||
| Marathon | Lake Dubay | ppb | 61.7 | 61.6 | 61.5 | 61.1 | 60.2 | 59.2 | 57.3 | 56.5 | 56.4 | 56.3 | 56.6 | 57.4 | 58.8 | 60.5 | 62.9 | 64.7 | 66 | 67.1 | 68.1 | 68.7 | 69 | 69.2 | 69 | 68 |
| Milwaukee | Bayside | ppb | 57.6 | 57.6 | 57 | 56.3 | 56.3 | 56.8 | 55.9 | 54.5 | 53.6 | 52.7 | 52.4 | 52.4 | 52.7 | 53.4 | 54.4 | 55.6 | 56.5 | 57.7 | 58.7 | 60 | 61.1 | 61.9 | 62 | 61.6 |
| Milwaukee | Milwaukee-16th St. Health Center | ppb | 49.8 | 49.1 | 46.8 | 45.2 | 42.2 | 38.9 | 34.2 | 32.1 | 31.8 | 31.7 | 33.7 | 35.5 | 38.9 | 44.2 | 49.6 | 52.3 | 53.4 | 54.4 | 55.5 | 56.3 | 57.3 | 58.5 | 59.1 | 59.5 |
| Outagamie | Appleton | ppb | 55.2 | 53.2 | 52.3 | 51.3 | 48.9 | 45.7 | 44.5 | 43.7 | 42.4 | 41.7 | 41.8 | 43.3 | 46.7 | 51.6 | 55.3 | 58.8 | 62.3 | 65.8 | 67.7 | 67.3 | 66 | 62.9 | 60 | 56.9 |
| Ozaukee | Grafton | ppb | 55.4 | 53.6 | 51.4 | 49 | 47.7 | 43.3 | 39.8 | 38.1 | 38.7 | 37.3 | 38.6 | 41.3 | 44.5 | 50.7 | 56.4 | 59.4 | 61.1 | 61.7 | 62.7 | 63 | 63.1 | 62.8 | 61.6 | 60.6 |
| Ozaukee | Harrington Beach Park | ppb | 55.9 | 54 | 52.2 | 50.7 | 49.1 | 46.8 | 45.2 | 44 | 43.8 | 44.4 | 45.3 | 46.4 | 48.2 | 51.3 | 54.1 | 56.4 | 58.4 | 59.6 | 60.3 | 60.9 | 61.4 | 60.8 | 59.9 | 58.7 |
| Racine | Racine-Payne & Dolan | ppb | 62.6 | 61.5 | 60.3 | 59.2 | 57.9 | 56.2 | 54.8 | 53.5 | 52.4 | 52.2 | 52 | 52.2 | 53 | 54.3 | 55.6 | 56.8 | 58 | 59 | 59.9 | 60.6 | 61.3 | 61.9 | 62 | 62 |
| Rock | Beloit-Converse | ppb | 54.2 | 52.5 | 50.4 | 49.1 | 48.1 | 46.8 | 45.1 | 44 | 43.6 | 43.8 | 45.1 | 47.1 | 49.3 | 52.3 | 55.3 | 57.7 | 59.5 | 60.9 | 61.3 | 60.5 | 59.3 | 56.7 | 53.6 | 48.5 |
| Sauk | Devils Lake | ppb | 54 | 53.1 | 52.5 | 52.3 | 52.5 | 54.3 | 54.7 | 54.7 | 52.9 | 51.9 | 51.8 | 52.6 | 53.5 | 54.8 | 57.8 | 61.6 | 65.4 | 67.6 | 68.6 | 66.8 | 64.6 | 62.3 | 60.1 | 56.9 |
| Sheboygan | Sheboygan-Haven | ppb | 58.1 | 56.1 | 55.2 | 54.1 | 53 | 51.5 | 50.2 | 47.8 | 46.2 | 45.8 | 45.6 | 46.5 | 48.3 | 50.6 | 53.9 | 57.7 | 61.1 | 61.5 | 62.5 | 63.1 | 63.6 | 64 | 63.1 | 61.5 |
| Sheboygan | Sheboygan-Kohler Andrae | ppb | 60 | 58.3 | 57 | 55.6 | 54.6 | 52.8 | 50.7 | 49.6 | 49.1 | 49.4 | 49.4 | 49.8 | 50.6 | 53.4 | 56.5 | 58.9 | 60.8 | 62.3 | 63.6 | 64.6 | 65.3 | 65.5 | 65.7 | 65.1 |
| Vilas | Trout Lake | ppb | 62.2 | 61.2 | 59.6 | 58 | 55.4 | 53.7 | 53.2 | 53 | 53.3 | 54.1 | 55.6 | 57.2 | 60.2 | 62.5 | 63.7 | 64.6 | 65.1 | 65.2 | 65.4 | 65.3 | 64.9 | 64.3 | 63.1 | 61.8 |
| Waukesha | Waukesha-Cleveland Ave. | ppb | 53.9 | 52.5 | 51.5 | 50.2 | 47.6 | 44.1 | 41.4 | 39.8 | 39 | 39.3 | 40.1 | 41.6 | 44.5 | 48.6 | 52.4 | 54.3 | 55.9 | 56.4 | 57.1 | 57.6 | 58 | 58.3 | 58 | 57.6 |