JanFebMarAprMayJunJulAugSepOctNovDec
112.310.49.0         
213.213.08.7         
311.113.011.2         
48.813.610.3         
58.711.29.3         
67.813.113.4         
75.111.611.9         
83.612.311.9         
93.912.112.0         
104.911.612.6         
115.411.19.9         
125.610.314.4         
133.611.813.6         
147.112.615.2         
153.915.214.3         
164.812.111.3         
172.911.915.8         
183.414.614.1         
196.112.9          
206.811.8          
2112.112.1          
2212.711.2          
2312.69.3          
2412.59.3          
2512.48.1          
2612.49.6          
279.210.1          
2811.411.1          
2911.810.6          
3010.1          
3111.3      
Avg: 8.311.6* 12.2         
Hi: 13.215.2* 15.8         
Lo: 2.98.1* 8.7         
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
20248.311.6* 12.2         
20238.510.811.014.519.725.121.522.223.417.111.410.5
20228.711.213.615.619.322.225.826.620.218.213.27.5
20217.08.912.213.515.922.224.121.522.016.611.110.2
20209.610.711.718.520.821.322.723.820.914.712.68.4
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
Avg8.79.8* 11.715.318.822.324.523.1* 20.716.211.69.9