JanFebMarAprMayJunJulAugSepOctNovDec
111.41.711.317.3        
24.94.413.111.1        
35.08.211.910.0        
42.811.210.37.3        
53.79.911.610.9        
69.311.112.113.2        
710.810.211.815.9        
89.810.510.617.2        
95.910.613.510.7        
107.48.310.914.2        
118.89.711.314.9        
1210.311.39.612.9        
1312.211.611.310.8        
149.513.613.410.8        
159.813.414.214.3        
1610.211.311.714.3        
175.512.110.419.3        
186.49.810.423.1        
196.511.512.624.4        
204.612.112.9         
217.112.413.7         
226.810.311.0         
234.516.912.9         
246.116.614.3         
2512.118.813.8         
2610.117.714.6         
278.117.315.2         
286.512.516.4         
297.217.9         
305.119.8         
314.613.6     
Avg: 7.511.612.8* 14.3        
Hi: 12.218.819.8* 24.4        
Lo: 2.81.79.6* 7.3        
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
20197.511.612.8* 14.3        
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
Avg8.89.111.4* 15.018.822.325.022.8* 20.316.111.610.3