JanFebMarAprMayJunJulAugSepOctNovDec
18.211.79.8         
211.013.49.4         
311.211.211.0         
48.49.27.7         
58.910.45.9         
69.89.310.8         
712.310.912.7         
812.011.211.7         
912.112.210.6         
108.49.914.4         
1111.47.813.9         
1211.38.910.1         
1310.710.611.4         
1412.711.111.8         
1511.612.110.4         
1611.912.612.6         
1710.210.112.1         
186.610.313.7         
196.910.29.7         
207.310.410.7         
216.810.412.5         
227.013.513.1         
237.114.711.8         
246.711.315.6         
257.98.215.9         
269.88.414.4         
279.79.214.0         
287.211.712.6         
2910.110.79.2         
3012.3          
3111.4      
Avg: 9.610.7* 11.7         
Hi: 12.714.7* 15.9         
Lo: 6.67.8* 5.9         
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
20209.610.7* 11.7         
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
Avg8.99.3* 11.515.218.722.125.022.9* 20.316.011.410.2