JanFebMarAprMayJunJulAugSepOctNovDec
111.210.59.812.410.116.216.921.921.019.019.7 
215.311.68.813.511.216.617.221.120.715.316.4 
313.511.27.418.113.416.318.320.317.514.618.4 
412.310.59.220.819.018.018.221.216.913.519.8 
58.310.39.823.516.418.719.422.316.116.819.6 
67.211.410.224.812.918.517.321.615.621.216.8 
76.212.215.517.213.218.617.721.517.720.117.6 
84.516.812.015.614.518.220.421.717.519.418.8 
93.114.811.610.015.016.120.822.517.520.515.9 
105.610.410.511.518.916.521.523.118.515.413.7 
114.410.29.412.317.115.422.429.617.517.113.4 
125.412.211.115.614.714.619.522.515.321.411.5 
1311.712.914.318.915.517.618.321.315.121.78.0 
1413.917.017.616.213.017.819.919.614.520.49.1 
1513.919.715.413.112.216.420.320.714.123.111.7 
1614.512.316.711.613.218.318.920.515.421.216.7 
1718.710.917.611.313.721.221.621.116.314.412.1 
1814.611.015.811.914.019.621.819.917.014.611.9 
195.411.814.512.413.818.722.518.919.416.813.1 
203.611.313.612.313.916.922.019.521.020.013.4 
2111.613.814.711.214.416.619.021.019.919.613.7 
2214.514.714.410.813.916.719.719.518.116.2  
2313.97.812.69.814.016.420.821.117.216.0  
2412.77.412.410.314.518.620.920.718.021.1  
2513.212.411.010.917.220.120.518.821.414.3  
2610.89.58.312.115.821.720.719.618.511.2  
2712.08.812.312.215.220.020.621.215.212.4  
2819.510.114.211.715.019.324.620.913.912.7  
2917.110.012.211.516.317.024.720.217.715.0  
3014.812.414.315.917.425.821.117.916.3  
3112.510.815.923.321.716.9 
Avg: 11.211.812.513.914.617.820.521.217.417.4* 14.8 
Hi: 19.519.717.624.819.021.725.829.621.423.1* 19.8 
Lo: 3.17.47.49.810.114.616.918.813.911.2* 8.0 
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
202411.211.812.513.914.617.820.521.217.417.4* 14.8 
20237.68.213.012.415.220.220.220.721.219.013.211.1
20229.311.013.513.017.319.722.122.720.121.014.112.1
20218.813.812.713.614.918.619.520.020.416.611.012.6
202010.813.511.815.718.118.221.021.820.015.515.110.9
20197.512.412.312.913.918.221.021.319.417.411.411.6
201810.06.811.214.814.618.521.921.420.515.513.212.0
20176.911.412.713.217.219.720.220.817.616.911.38.9
201611.610.110.213.016.118.220.521.319.815.911.511.5
20159.07.610.314.916.018.921.320.917.516.414.414.8
201411.910.711.714.214.719.019.920.220.619.214.79.1
20139.58.211.812.912.616.021.920.419.618.613.811.0
2012  * 13.411.216.618.819.321.719.316.312.711.4
Avg9.510.5* 12.113.515.518.620.721.119.517.4* 13.211.4