| 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 | 31.8 | 29.9 | 30.7 | 32.7 | 35.3 | 38.1 | 42.1 | 44.4 | 44.6 | 45.1 | 45 | 44.5 | 44.1 | 43.9 | 43.8 | 43.3 | 42.7 | 42.3 | 41.8 | 41.4 | 41.1 | 40.6 | 39.7 | 39.1 |
| Brown | Green Bay UW | ppb | 47.5 | 46.4 | 45.2 | 44.1 | 43 | 42.1 | 41.6 | 41.3 | 41.3 | 42.6 | 45 | 47.7 | 50.7 | 54.2 | 57.7 | 60.8 | 63.4 | 64.9 | 65 | 63.6 | 63.2 | 61.3 | 58.3 | 55 |
| Columbia | Columbus | ppb | 47.5 | 45.9 | 43.9 | 43 | 42.6 | 41.8 | 40.6 | 40.2 | 40.8 | 42.2 | 45.1 | 48 | 51.4 | 55 | 59.5 | 62.7 | 65.1 | 66.6 | 67 | 66 | 64.8 | 63.1 | 61.2 | 58.7 |
| Dane | Madison East | ppb | 52.5 | 50.4 | 47.8 | 45.3 | 42.2 | 38.9 | 36.9 | 35.2 | 35.2 | 36.4 | 38.9 | 42.1 | 46.7 | 52 | 56.1 | 60.2 | 63 | 64.7 | 65.5 | 65.1 | 64 | 62.6 | 60.8 | 58.6 |
| Dodge | Horicon Wildlife Area | ppb | 49.2 | 46.6 | 44.3 | 42.2 | 40.5 | 39.5 | 39.3 | 39.5 | 40.9 | 42.8 | 45.5 | 48.6 | 52.3 | 56.8 | 60.9 | 64.8 | 67.5 | 69 | 69.5 | 68.9 | 68 | 67.1 | 66 | 64.4 |
| Door | Newport Park | ppb | 48.5 | 50.7 | 51.9 | 53.4 | 54.5 | 55.1 | 54.8 | 53.9 | 51.3 | 48.2 | 45.4 | |||||||||||||
| Eau Claire | Eau Claire DOT Sign Shop | ppb | 50.9 | 46.4 | 41.4 | 36.7 | 32.3 | 28.1 | 23.1 | 21 | 22.2 | 25.2 | 29.6 | 35.8 | 42.2 | 47.6 | 54 | 57.6 | 59.1 | 59.9 | 58.8 | 56.2 | 55 | 53 | 49.8 | 47.1 |
| Fond du Lac | Fond Du Lac | ppb | 43 | 41 | 39.6 | 39.2 | 39.1 | 39.4 | 39.8 | 40.6 | 41.6 | 43.2 | 45.7 | 48.6 | 52.4 | 55.5 | 59 | 61.5 | 63.4 | 64.1 | 63.7 | 62.8 | 61.4 | 60.8 | 60 | 59 |
| Forest | Potawatomi | ppb | 58 | 56.7 | 55.8 | 55 | 54.5 | 54.1 | 54 | 54.4 | 54.8 | 55.5 | 56 | 56.8 | 57.8 | 59.1 | 60.4 | 61.7 | 61.8 | 60.8 | 58.9 | 55.9 | 52.8 | 49.8 | 46.8 | 44.3 |
| Jefferson | Jefferson-Laatsch | ppb | 46.9 | 44.2 | 42.4 | 41.1 | 39 | 37.6 | 36.4 | 36.4 | 37.5 | 39.4 | 42.1 | 45.6 | 50.4 | 55.7 | 60.5 | 64.1 | 66.8 | 68.4 | 69 | 68.9 | 68 | 66.9 | 64.8 | 62 |
| Kenosha | Chiwaukee Prairie | ppb | 41.9 | 36.6 | 33 | 29.4 | 26.6 | 24.3 | 24.3 | 27.2 | 31.8 | 37.6 | 42 | 44.9 | 47.9 | 52.3 | 56.6 | 60.6 | 64.1 | 66.6 | 68.5 | 71.6 | 74 | 74.9 | 74.9 | 74.8 |
| Kenosha | Kenosha-Water Tower | ppb | 38.5 | 35.3 | 32.7 | 30.1 | 27.4 | 25.9 | 26.7 | 30.1 | 33.7 | 37.3 | 41.2 | 45.5 | 50.6 | 56 | 60.8 | 64.9 | 68.5 | 71.2 | 72.5 | 72.7 | 72.5 | 72.3 | 71.9 | 70.9 |
| Kewaunee | Kewaunee | ppb | 47.9 | 45.2 | 43.2 | 41.8 | 40.8 | 39.9 | 39.7 | 40.5 | 42.5 | 45.1 | 47.9 | 50.7 | 53.4 | 56.3 | 58.6 | 59.4 | 60.5 | 61.7 | 62 | 62.2 | 60.7 | 59.3 | 57.1 | 55.9 |
| La Crosse | La Crosse DOT | ppb | 49.9 | 46.9 | 44.5 | 42.9 | 41.4 | 39.2 | 38.4 | 37.5 | 37.7 | 38.9 | 41.1 | 43.1 | 45.5 | 49.1 | 52.8 | 56 | 58.9 | 60.8 | 61.1 | 60.2 | 58.8 | 55.9 | 52.5 | 50.1 |
| Manitowoc | Manitowoc | ppb | 51.6 | 50.2 | 48.1 | 45.3 | 44.1 | 42.8 | 42 | 41.9 | 42.3 | 43.4 | 46 | 49.8 | 52.4 | 55.3 | 57.6 | 59.9 | 62.2 | 64.2 | 65.3 | 66.3 | 67.2 | 67.7 | 68.6 | 68 |
| Marathon | Lake Dubay | ppb | 57.6 | 56.1 | 54.6 | 53.5 | 52.6 | 51.4 | 49.8 | 48.6 | 48.1 | 48.3 | 49.1 | 50.5 | 52.2 | 54.5 | 57.4 | 59.8 | 61.5 | 62.2 | 62.1 | 61.4 | 60.5 | 59.5 | 58.2 | 57.4 |
| Milwaukee | Bayside | ppb | 39.5 | 36.4 | 34.2 | 32.2 | 30.7 | 30.1 | 30.4 | 32.1 | 35.2 | 38.7 | 42.1 | 45.7 | 49.5 | 53.5 | 57.6 | 61.3 | 64.3 | 66.9 | 68.6 | 70 | 69.9 | 69.6 | 68.6 | 66.7 |
| Milwaukee | Milwaukee-16th St. Health Center | ppb | 37.3 | 34.6 | 32.6 | 31.4 | 30.3 | 29 | 28.6 | 30.2 | 33.4 | 36.9 | 40.8 | 44.5 | 48.4 | 52.2 | 56.9 | 60.2 | 63 | 65.2 | 66.5 | 66.6 | 65.9 | 65.5 | 63.9 | 63.4 |
| Outagamie | Appleton | ppb | 47.9 | 44.7 | 42.8 | 41.2 | 40.2 | 38.7 | 38 | 38.6 | 40.3 | 42.7 | 45.2 | 48.3 | 51.4 | 55.2 | 58.7 | 61.6 | 63.7 | 64.7 | 65.1 | 64.3 | 62.5 | 61.3 | 60.8 | 57.5 |
| Ozaukee | Grafton | ppb | 41.2 | 38.1 | 36.5 | 34.9 | 34 | 33.9 | 34.4 | 36 | 38.8 | 40.2 | 43.8 | 47.9 | 52.1 | 57.1 | 61.4 | 65.4 | 68.9 | 70.1 | 71.6 | 72.7 | 73.4 | 73.2 | 72.5 | 71.4 |
| Ozaukee | Harrington Beach Park | ppb | 45.2 | 42.3 | 38.7 | 35.2 | 32.4 | 29.4 | 28.6 | 29.9 | 32.4 | 33 | 38.1 | 43.4 | 48.2 | 54.4 | 58.9 | 61.7 | 64.4 | 65.5 | 67.6 | 69.6 | 71.2 | 71.4 | 71.4 | 71.5 |
| Racine | Racine-Payne & Dolan | ppb | 45.3 | 41.8 | 39 | 36.2 | 33.4 | 30.6 | 29.4 | 30.4 | 33.3 | 34.5 | 38.4 | 42.8 | 47.4 | 52.1 | 57.4 | 62.5 | 67 | 68.4 | 70.4 | 71.3 | 72.2 | 73.2 | 73.2 | 72.8 |
| Rock | Beloit-Converse | ppb | 44.8 | 40 | 35.6 | 31.3 | 26.5 | 22.4 | 21.3 | 23 | 25.8 | 29.9 | 34.6 | 40.6 | 47.7 | 54.6 | 59.1 | 62.7 | 65.4 | 66.6 | 66.7 | 65.6 | 64 | 61.9 | 59.4 | 56.2 |
| Sauk | Devils Lake | ppb | 56.4 | 55.2 | 54.1 | 53.7 | 55.1 | 55.4 | 55.5 | 55.6 | 56.1 | 57 | 57.8 | 59.1 | 60.7 | 62.2 | 63.6 | 65 | 66.1 | 66.9 | 67.7 | 67.9 | 67.3 | 66.2 | 64.9 | 63.2 |
| Sheboygan | Sheboygan-Haven | ppb | 43.8 | 41.3 | 40 | 39.2 | 39 | 39.3 | 40.7 | 43 | 45.7 | 48.7 | 50.7 | 52.7 | 54.6 | 57.2 | 59.5 | 62.1 | 64.6 | 66.1 | 67.1 | 68.2 | 69.6 | 69.6 | 68.8 | 67.2 |
| Sheboygan | Sheboygan-Kohler Andrae | ppb | 51.7 | 50.4 | 48.2 | 45.4 | 41.8 | 38.9 | 36.4 | 34.7 | 34.9 | 36.3 | 39.3 | 42.4 | 45.5 | 48.8 | 51.9 | 55.1 | 57 | 58.9 | 60.7 | 63.6 | 67.3 | 70.1 | 72.3 | 73.6 |
| Vilas | Trout Lake | ppb | 50.1 | 46.9 | 43.5 | 41.6 | 40.2 | 39 | 38.7 | 39.1 | 40 | 42.6 | 46.1 | 48.6 | 50.9 | 53.2 | 54.1 | 53.6 | 52.2 | 49.3 | 46.9 | 43.9 | 42.1 | 40.4 | 39.4 | 39.4 |
| Waukesha | Waukesha-Cleveland Ave. | ppb | 38.7 | 35.9 | 32.6 | 29.7 | 26.1 | 25.2 | 25.1 | 26.6 | 29.8 | 33.5 | 38.5 | 43.2 | 49.4 | 53.7 | 58.4 | 62 | 64.2 | 66.2 | 68.2 | 69 | 69.1 | 69 | 68.6 | 68.1 |