JanFebMarAprMayJunJulAugSepOctNovDec
18.211.79.810.215.4       
211.013.49.414.317.3       
311.211.211.014.315.6       
48.49.27.717.018.3       
58.910.45.920.915.7       
69.89.310.817.621.4       
712.310.912.719.422.2       
812.011.211.724.324.6       
912.112.210.625.025.8       
108.49.914.423.919.6       
1111.47.813.926.212.9       
1211.38.910.122.316.1       
1310.710.611.413.313.2       
1412.711.111.816.314.9       
1511.612.110.418.218.3       
1611.912.612.623.518.7       
1710.210.112.112.819.5       
186.610.313.713.020.9       
196.910.29.718.423.7       
207.310.410.718.825.3       
216.810.412.520.327.3       
227.013.513.122.419.5       
237.114.711.824.617.9       
246.711.315.622.820.7       
257.98.215.919.5        
269.88.414.419.7        
279.79.214.019.6        
287.211.712.610.5        
2910.110.79.214.6        
3012.310.212.2        
3111.411.7     
Avg: 9.610.711.718.5* 19.4       
Hi: 12.714.715.926.2* 27.3       
Lo: 6.67.85.910.2* 12.9       
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
20209.610.711.718.5* 19.4       
20197.511.612.815.918.220.825.023.220.114.910.39.7
20189.77.39.314.920.423.827.323.320.015.611.910.5
20177.79.713.515.619.222.623.121.718.416.511.68.7
20169.69.511.314.219.621.424.124.221.815.710.310.0
20159.68.211.716.917.622.122.821.919.615.813.413.6
201410.310.613.716.018.623.426.021.922.017.012.29.6
20137.57.17.613.017.320.626.924.220.517.410.610.4
2012        * 19.715.010.89.2
Avg8.99.311.515.6* 18.822.125.022.9* 20.316.011.410.2