| 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 | 35.5 | 34.6 | 32.5 | 32.3 | 33 | 32.2 | 28.8 | 28.8 | 30.3 | 31.2 | 34.1 | 37.2 | 42 | 47.2 | 52.6 | 54.2 | 54.5 | 54.6 | 54.5 | 54.2 | 53.3 | 52.5 | 51.8 | 51.6 |
| Brown | Green Bay UW | ppb | 42.8 | 40.6 | 39.3 | 39 | 39 | 38.8 | 39 | 39.8 | 41.6 | 43.5 | 45.2 | 46.8 | 48.3 | 50.1 | 51.6 | 52.6 | 52.8 | 52.6 | 51.8 | 50.8 | 49.6 | 48.2 | 46.5 | 44.6 |
| Columbia | Columbus | ppb | 45.3 | 42.8 | 40.1 | 37.2 | 34.7 | 33 | 32.7 | 33.2 | 34.1 | 35.8 | 38.5 | 41.3 | 44.1 | 47 | 49.8 | 52.1 | 54 | 55.3 | 56.1 | 56.2 | 55.5 | 54 | 52.1 | 49.8 |
| Dane | Madison East | ppb | 27.6 | 24.1 | 20.6 | 20 | 22.3 | 25.5 | 27.3 | 28 | 29.3 | 32.1 | 36.1 | 40.2 | 44.1 | 47 | 49.5 | 51.7 | 53.6 | 54.6 | 55 | 54.7 | 54.1 | 53.1 | 51.3 | 49.1 |
| Dodge | Horicon Wildlife Area | ppb | 44 | 42 | 40.2 | 40.3 | 40.7 | 41.3 | 42.2 | 43 | 44 | 45.6 | 47.5 | 48.6 | 49.7 | 51.1 | 52.7 | 54.3 | 56.1 | 57.6 | 58.1 | 57.6 | 56.6 | 55.1 | 53.5 | 51.8 |
| Door | Newport Park | ppb | 49.6 | 48.8 | 48 | 47.7 | 47.8 | 48.3 | 48.6 | 48.6 | 49 | 49.5 | 50.3 | 51 | 51.6 | 52.1 | 53 | 54 | 54.7 | 54.5 | 53.5 | 52 | 50.2 | 48.3 | 46.3 | 44.7 |
| Eau Claire | Eau Claire DOT Sign Shop | ppb | 29.7 | 26.2 | 21.8 | 17.7 | 16.3 | 16.1 | 15.5 | 16.5 | 18 | 21 | 25.5 | 31.6 | 38.2 | 44.8 | 49.5 | 51.8 | 53 | 53 | 53 | 52.5 | 52 | 51.6 | 51 | 50.6 |
| Fond du Lac | Fond Du Lac | ppb | 48.6 | 47.6 | 46.2 | 45.2 | 45.1 | 45 | 45.5 | 45.7 | 46.1 | 46.8 | 48.2 | 49.7 | 51.1 | 52.6 | 54 | 55.3 | 56.7 | 57.2 | 56.8 | 55.6 | 54 | 51.7 | 49.8 | 47.8 |
| Forest | Potawatomi | ppb | 49.2 | 49.3 | 49.2 | 49.5 | 49.7 | 50.2 | 50.8 | 51.6 | 52.1 | 52.1 | 52.2 | 52 | 51.7 | 51.3 | 51 | 50.6 | 50.3 | 50.3 | 50.5 | 50.5 | 50.3 | 50 | 49.6 | 49.1 |
| Jefferson | Jefferson-Laatsch | ppb | 38.6 | 35.5 | 32 | 30.2 | 31 | 30.3 | 29.8 | 31.3 | 34 | 37.2 | 41.6 | 45.2 | 47.3 | 50 | 52.6 | 54.6 | 56.3 | 57.7 | 58.5 | 58.3 | 57.3 | 55.8 | 53.8 | 51.3 |
| Kenosha | Chiwaukee Prairie | ppb | 34.8 | 31.2 | 28 | 28.6 | 29.3 | 31 | 33.7 | 37 | 40.1 | 43.2 | 46.3 | 46.1 | 46.2 | 47.1 | 48.3 | 49.7 | 51.2 | 52.6 | 53.7 | 54.7 | 55.3 | 55.5 | 55.1 | 54.6 |
| Kenosha | Kenosha-Water Tower | ppb | 41.2 | 37.8 | 37.3 | 39 | 39.7 | 40 | 39.3 | 39.1 | 39.5 | 42.5 | 43.5 | 44 | 44.6 | 46.3 | 48.8 | 51.2 | 53.1 | 54.5 | 55.3 | 56 | 56 | 55.2 | 54.1 | 52.3 |
| Kewaunee | Kewaunee | ppb | 47.5 | 47.5 | 47.8 | 48.1 | 48.2 | 48.3 | 48 | 47.8 | 47.5 | 47.1 | 47.1 | 47 | 48.2 | 49.2 | 50.1 | 50.8 | 51.7 | 52.6 | 53.2 | 53.7 | 53 | 52 | 51 | 50.1 |
| La Crosse | La Crosse DOT | ppb | 35 | 29.2 | 23.1 | 18.2 | 14.2 | 10.6 | 8.2 | 9.2 | 13.1 | 18.5 | 24.5 | 31 | 37.6 | 44.3 | 50.5 | 53.5 | 54.3 | 55.2 | 56.1 | 56.6 | 56.7 | 56.8 | 56.8 | 56.8 |
| Manitowoc | Manitowoc | ppb | 40.3 | 36.5 | 32.3 | 28.3 | 24.3 | 21.1 | 18.6 | 21.2 | 24.6 | 28.3 | 32.5 | 36.7 | 41.6 | 47.2 | 52.2 | 53.2 | 53.6 | 53.7 | 53.5 | 53 | 51.7 | 49.3 | 46.8 | 45.8 |
| Marathon | Lake Dubay | ppb | 48.5 | 46.5 | 44.7 | 43.1 | 41.2 | 39.3 | 39.3 | 39.7 | 41.3 | 43.2 | 44.8 | 46.5 | 48.3 | 50.5 | 52.6 | 54.1 | 55.2 | 55.6 | 55.8 | 55.7 | 55.5 | 55 | 53.7 | 52.2 |
| Milwaukee | Bayside | ppb | 23 | 17.1 | 13.2 | 13.8 | 16.2 | 20 | 24.6 | 30.1 | 35.5 | 41.1 | 45.2 | 45.7 | 46.2 | 47.1 | 48.5 | 49.6 | 50.6 | 51.2 | 51.7 | 52.1 | 52.2 | 52.1 | 51.3 | 49.1 |
| Milwaukee | Milwaukee-16th St. Health Center | ppb | 12.5 | 10.5 | 6.2 | 7.7 | 11.8 | 16 | 19.6 | 24.1 | 28.8 | 33.5 | 37.7 | 38.7 | 39.1 | 41 | 43.2 | 44.5 | 45.3 | 45.7 | 45.6 | 45.3 | 44.6 | 42.7 | 41.3 | 40.8 |
| Outagamie | Appleton | ppb | 31.6 | 28.8 | 27.5 | 25.8 | 24.8 | 25.6 | 24.8 | 26.3 | 28.2 | 30.8 | 34.2 | 38.2 | 42.1 | 45.1 | 49.5 | 51.8 | 53.6 | 53.8 | 53 | 51.7 | 50.1 | 48.1 | 46 | 43.5 |
| Ozaukee | Grafton | ppb | 31 | 26.7 | 21.5 | 23.2 | 25.6 | 27.2 | 28.8 | 30.8 | 34.7 | 38.5 | 44 | 46.7 | 48.6 | 50 | 51.2 | 52.3 | 53.1 | 53.3 | 53.1 | 53 | 52.2 | 51.1 | 50.1 | 49.2 |
| Ozaukee | Harrington Beach Park | ppb | 43.8 | 41.3 | 39.2 | 37.8 | 37.6 | 36.6 | 36 | 36.5 | 37.7 | 39.2 | 41.1 | 43.1 | 44.6 | 46.7 | 48.5 | 49.5 | 50.2 | 51.1 | 51.7 | 52 | 52 | 51.6 | 51.2 | 50.7 |
| Racine | Racine-Payne & Dolan | ppb | 28.3 | 23.8 | 22.5 | 22.8 | 24 | 25.7 | 28.7 | 33.3 | 38.5 | 43 | 44.8 | 45.1 | 45.6 | 46.6 | 47.7 | 48.7 | 49.7 | 50.7 | 51.5 | 52 | 52 | 51.3 | 50.7 | 50.3 |
| Rock | Beloit-Converse | ppb | 33.5 | 31.5 | 30.1 | 31.6 | 33.6 | 36.7 | 37.2 | 38 | 39.2 | 40.8 | 42.8 | 45.7 | 48.6 | 51.3 | 54.2 | 56.2 | 58 | 59.3 | 59.6 | 59.1 | 58 | 56.1 | 53.3 | 50.3 |
| Sauk | Devils Lake | ppb | 43.5 | 42.2 | 41.5 | 42.8 | 44.1 | 45.6 | 47.1 | 47.8 | 48 | 48.2 | 49.1 | 49.7 | 50.2 | 51.1 | 52.5 | 54.1 | 55.7 | 56.2 | 57.5 | 58.3 | 58.8 | 58.6 | 58 | 57 |
| Sheboygan | Sheboygan-Haven | ppb | 43.7 | 42.2 | 40.7 | 39.3 | 37.5 | 35 | 33.2 | 33.1 | 34 | 35.2 | 37.1 | 39.1 | 42 | 45.7 | 48.6 | 50.3 | 50.8 | 51.6 | 51.8 | 51.6 | 51.2 | 50.3 | 49.3 | 48.1 |
| Sheboygan | Sheboygan-Kohler Andrae | ppb | 46.6 | 44.3 | 42.7 | 41.7 | 41 | 41 | 41.7 | 42.7 | 44 | 45.7 | 47 | 47.6 | 48.6 | 50 | 51.1 | 51.7 | 52.5 | 53.2 | 53.8 | 54.2 | 54.2 | 53.8 | 53.5 | 53.1 |
| Vilas | Trout Lake | ppb | 49.1 | 48.6 | 48 | 47.6 | 47.5 | 47.1 | 47.2 | 47.6 | 48.2 | 49.2 | 50.3 | 51.2 | 52.1 | 52.8 | 53.2 | 53.2 | 53.1 | 52.7 | 52.2 | 51.8 | 51.3 | 51 | 50.7 | 50.5 |
| Waukesha | Waukesha-Cleveland Ave. | ppb | 28.1 | 23.7 | 19 | 17.6 | 19.2 | 19.8 | 19 | 20.5 | 23.2 | 27.3 | 32.7 | 36.2 | 38 | 40.7 | 44.7 | 46.8 | 49.2 | 50.4 | 50.7 | 50.4 | 49.8 | 48.7 | 47.2 | 44.6 |