| 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 | 51.5 | 51.1 | 50.2 | 49.7 | 49.5 | 49 | 48.3 | 47.7 | 47.3 | 46.8 | 47.5 | 48.4 | 49.7 | 51.1 | 53 | 54.7 | 56 | 56 | 56.1 | 54.7 | 54.1 | 53.3 | 51 | 48 |
| Brown | Green Bay UW | ppb | 43.3 | 42.2 | 40.7 | 39.5 | 38.2 | 36.1 | 34.6 | 34.7 | 35.2 | 36.1 | 37.6 | 39.5 | 42.3 | 46.6 | 50.8 | 53.8 | 56.2 | 56.7 | 57 | 57 | 55.6 | 53.5 | 51.1 | 48.6 |
| Columbia | Columbus | ppb | 47.6 | 45.6 | 43.7 | 42.1 | 41.1 | 40.6 | 39.5 | 38.8 | 39 | 39.3 | 40.3 | 41.8 | 44.1 | 46.7 | 50.6 | 54.5 | 57.5 | 60.1 | 61.7 | 62.7 | 62.8 | 62.3 | 61 | 58.7 |
| Dane | Madison East | ppb | 46.8 | 44.5 | 42.2 | 39.6 | 35.6 | 31.2 | 27.5 | 25.6 | 25.6 | 26.1 | 27.3 | 29.7 | 34 | 39.6 | 46 | 51 | 54.2 | 57.2 | 59 | 59.2 | 58 | 55.5 | 52 | 47 |
| Dodge | Horicon Wildlife Area | ppb | 49.7 | 47.7 | 46.6 | 46.3 | 46 | 45 | 44.2 | 43.5 | 42.6 | 42.2 | 42.3 | 43.1 | 45 | 47.8 | 50.8 | 53.8 | 57 | 59.5 | 61.1 | 62 | 60.3 | 57.6 | 54.1 | 50.3 |
| Door | Newport Park | ppb | 43.2 | 42.6 | 42 | 42 | 42.2 | 42.3 | 42.1 | 41.6 | 41 | 40.2 | 40.1 | 40.3 | 40.8 | 41.7 | 43 | 44.5 | 46.1 | 47.7 | 48.8 | 49.5 | 50 | 50 | 49 | 48.2 |
| Eau Claire | Eau Claire DOT Sign Shop | ppb | 50.2 | 49.8 | 49 | 48.1 | 46.7 | 45 | 43.3 | 41.6 | 40.2 | 40 | 40.7 | 42.3 | 44.8 | 48 | 51.2 | 54.3 | 57 | 58.5 | 59.5 | 58.7 | 55.6 | 49.8 | 43.6 | 36.7 |
| Fond du Lac | Fond Du Lac | ppb | 45.8 | 44.1 | 42.7 | 42.3 | 42 | 42.1 | 41.7 | 41.5 | 41.5 | 42.2 | 43.2 | 44.8 | 47.1 | 49.5 | 52.2 | 54.8 | 57.2 | 59 | 59.6 | 58.3 | 56.5 | 54.7 | 52.2 | 49 |
| Forest | Potawatomi | ppb | 48.6 | 48 | 47.1 | 46.5 | 45.8 | 45.3 | 44.8 | 44.3 | 44.5 | 45.1 | 46.3 | 47.6 | 49.2 | 51 | 52.8 | 54.8 | 56.2 | 57.1 | 57.5 | 57.8 | 58 | 58 | 57.7 | 57.2 |
| Jefferson | Jefferson-Laatsch | ppb | 48.6 | 46 | 43.6 | 42.2 | 41.1 | 38.7 | 37.1 | 37 | 37 | 37 | 37.3 | 38.2 | 40.2 | 44.6 | 48.7 | 51.6 | 54.7 | 57.7 | 59.3 | 58.8 | 56 | 52.6 | 49.2 | 45.3 |
| Kenosha | Chiwaukee Prairie | ppb | 53.7 | 52.7 | 51.7 | 50.7 | 49.5 | 48.3 | 47.2 | 46.1 | 45 | 43.8 | 43.1 | 42.5 | 42.3 | 42.5 | 43.1 | 43.8 | 45 | 46.6 | 48.2 | 49.3 | 50 | 50.3 | 50 | 48 |
| Kenosha | Kenosha-Water Tower | ppb | 51.1 | 50.1 | 49.2 | 48.2 | 46.6 | 45 | 42.7 | 41.3 | 40.2 | 39.1 | 38 | 37 | 37.3 | 38 | 39.8 | 41.1 | 42.6 | 43.2 | 43.8 | 44.8 | 45.2 | 45.6 | 45.1 | 43.1 |
| Kewaunee | Kewaunee | ppb | 48.8 | 47.3 | 45.6 | 44.2 | 43.2 | 42.1 | 41.1 | 40 | 39.5 | 39.1 | 39.2 | 39.6 | 40.3 | 41.5 | 42.8 | 44.6 | 46.1 | 47.3 | 48.2 | 48.5 | 48.7 | 48.7 | 47.8 | 46.1 |
| La Crosse | La Crosse DOT | ppb | 56.7 | 56.1 | 53.6 | 49.7 | 46.2 | 42.1 | 38.7 | 36.7 | 35.1 | 34 | 35.1 | 38.5 | 42.5 | 47.3 | 51.3 | 54 | 56.5 | 58.6 | 60.1 | 60 | 57 | 53.6 | 48.8 | 44.3 |
| Manitowoc | Manitowoc | ppb | 45 | 43.8 | 42.3 | 41 | 40.2 | 40.7 | 41.8 | 42 | 42.2 | 42.7 | 43.8 | 45.1 | 46.5 | 47.2 | 48.4 | 49.2 | 50 | 50.5 | 50.8 | 50.8 | 50.4 | 49.5 | 48 | 46 |
| Marathon | Lake Dubay | ppb | 50.5 | 48.7 | 47.3 | 46.1 | 44.8 | 43.5 | 42.3 | 41.8 | 42 | 42.8 | 43.8 | 45.3 | 45.7 | 46.6 | 50.8 | 54.5 | 57.8 | 60.6 | 63 | 64.6 | 64.8 | 64.8 | 64.5 | 63.8 |
| Milwaukee | Bayside | ppb | 46.3 | 43 | 41.3 | 39.6 | 38.6 | 38 | 37.5 | 38.5 | 40.1 | 42.5 | 43 | 43.6 | 43.6 | 43.6 | 44.1 | 44.7 | 45.7 | 47 | 47.7 | 48.3 | 48.3 | 46.7 | 42.5 | 36.8 |
| Milwaukee | Milwaukee-16th St. Health Center | ppb | 40.2 | 40.3 | 40.3 | 40.1 | 40.3 | 40.8 | 40.1 | 38.5 | 37.7 | 36.7 | 36.3 | 36 | 35.2 | 35.3 | 36.5 | 37.7 | 38.1 | 37.8 | 37.8 | 36.1 | 33.3 | 31.8 | 30.2 | 29.2 |
| Outagamie | Appleton | ppb | 40.8 | 38.7 | 37.2 | 36 | 34.7 | 32.8 | 31.6 | 31.2 | 32.3 | 33.8 | 35.7 | 38.1 | 41.2 | 45.7 | 49.7 | 53.3 | 56 | 57.8 | 59 | 58.5 | 57 | 55.6 | 54 | 52 |
| Ozaukee | Grafton | ppb | 48.1 | 47.3 | 46.7 | 45.8 | 45.2 | 45.1 | 44.6 | 44 | 43.8 | 44.1 | 44.8 | 45.5 | 46.5 | 47 | 48 | 48.5 | 49 | 49.8 | 50.6 | 50.7 | 50.2 | 48.7 | 45.5 | 41.1 |
| Ozaukee | Harrington Beach Park | ppb | 49.8 | 48.5 | 46.8 | 45 | 43 | 42.6 | 42.5 | 42.3 | 42.6 | 43.2 | 44.2 | 45.6 | 47.5 | 48.1 | 48.5 | 49 | 49.5 | 50.1 | 50.5 | 50.2 | 49.6 | 49 | 48 | 46.6 |
| Racine | Racine-Payne & Dolan | ppb | 49.6 | 48.8 | 48 | 47.3 | 46.6 | 46.2 | 45.6 | 44.5 | 43.5 | 42.5 | 41.7 | 40.8 | 40.6 | 40.7 | 41.3 | 42.2 | 43.5 | 45 | 46.2 | 47.2 | 47.5 | 47.3 | 46.8 | 46 |
| Rock | Beloit-Converse | ppb | 47.3 | 45 | 43 | 41.3 | 39.8 | 38.8 | 38.5 | 38.3 | 38 | 37.1 | 36.7 | 36.8 | 37.8 | 39.8 | 42.7 | 46 | 49.5 | 52.5 | 52.8 | 49.3 | 44.7 | 40.7 | 37 | 32.2 |
| Sauk | Devils Lake | ppb | 55.7 | 54.3 | 52.6 | 51.1 | 49.6 | 48.5 | 47.2 | 46.5 | 46 | 45.6 | 46.3 | 47.5 | 49.3 | 51.8 | 55 | 57.7 | 60.3 | 62.8 | 63.3 | 61.6 | 59.2 | 56.5 | 53.3 | 50.2 |
| Sheboygan | Sheboygan-Haven | ppb | 47 | 45.5 | 44.7 | 44 | 45 | 45.1 | 45.2 | 46.2 | 47.3 | 47.8 | 47.8 | 47.7 | 46.7 | 45.6 | 44.6 | 42.8 | ||||||||
| Sheboygan | Sheboygan-Kohler Andrae | ppb | 52 | 50.5 | 49.8 | 49.1 | 49.5 | 49.8 | 50 | 50.2 | 50.5 | 50.5 | 50.1 | 49 | 47.7 | 46.7 | ||||||||||
| Vilas | Trout Lake | ppb | 50.2 | 49.7 | 49.1 | 48.5 | 48 | 47.3 | 46.6 | 46.1 | 46 | 46.6 | 48 | 49.6 | 51.1 | 52.7 | 54.7 | 56.7 | 58.3 | 59.5 | 59.8 | 60 | 60.1 | 60 | 59.3 | 58.5 |
| Waukesha | Waukesha-Cleveland Ave. | ppb | 42.3 | 41.2 | 40.3 | 40.1 | 39.3 | 39.2 | 38.1 | 37.6 | 37 | 36.2 | 36.2 | 36.3 | 37.1 | 38.3 | 41.7 | 45.5 | 48 | 49.1 | 50 | 49.6 | 48.3 | 48.1 | 46.2 | 43 |