JanFebMarAprMayJunJulAugSepOctNovDec
111.41.711.3         
24.94.413.1         
35.08.211.9         
42.811.210.3         
53.79.911.6         
69.311.112.1         
710.810.211.8         
89.810.510.6         
95.910.613.5         
107.48.310.9         
118.89.711.3         
1210.311.39.6         
1312.211.611.3         
149.513.613.4         
159.813.414.2         
1610.211.311.7         
175.512.110.4         
186.49.810.4         
196.511.512.6         
204.612.112.9         
217.112.413.7         
226.810.311.0         
234.516.912.9         
246.116.6          
2512.118.8          
2610.117.7          
278.117.3          
286.512.5          
297.2          
305.1          
314.6      
Avg: 7.511.6* 11.8         
Hi: 12.218.8* 14.2         
Lo: 2.81.7* 9.6         
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
20197.511.6* 11.8         
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
Avg8.89.1* 11.315.118.822.325.022.8* 20.316.111.610.3