JanFebMarAprMayJunJulAugSepOctNovDec
115.915.219.821.1        
216.515.812.020.5        
318.313.815.618.4        
415.717.220.918.5        
517.917.217.120.4        
616.218.320.121.8        
715.716.317.325.6        
816.116.915.5         
918.418.513.2         
1012.419.616.5         
1118.019.317.4         
1218.418.114.7         
1315.018.914.8         
1413.620.116.4         
1515.518.816.5         
1615.218.916.3         
1714.616.616.8         
1817.319.618.2         
1914.820.421.6         
2011.923.217.6         
2117.621.116.2         
2219.318.515.1         
2317.019.313.6         
2414.021.017.6         
250.017.220.2         
260.019.721.8         
2715.517.520.8         
2815.712.423.6         
2910.324.7         
3010.321.3         
3114.526.1     
Avg: 14.618.218.0* 20.9        
Hi: 19.323.226.1* 25.6        
Lo: 0.012.412.0* 18.4        
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
202514.618.218.0* 20.9        
202417.418.719.724.628.430.136.236.629.923.821.417.1
202315.217.823.228.728.132.836.838.329.827.2* 20.015.8
202216.920.218.021.429.932.638.634.830.828.4* 21.017.9
2021* 14.517.821.323.428.230.835.835.531.0* 27.818.217.7
2020           * 12.7
Avg* 15.718.520.0* 23.828.731.636.836.330.4* 26.8* 20.2* 16.2