JanFebMarAprMayJunJulAugSepOctNovDec
132.435.131.830.7        
229.433.332.730.7        
330.526.932.727.3        
432.231.832.831.0        
532.033.830.929.2        
633.933.132.530.5        
733.532.029.732.5        
833.933.824.534.8        
933.434.422.731.8        
1033.334.733.231.5        
1134.733.733.732.3        
1228.434.535.032.4        
1334.227.135.430.7        
1434.124.928.929.3        
1534.421.229.530.3        
1634.328.229.930.8        
1734.431.532.030.7        
1831.033.232.0         
1929.933.825.7         
2030.434.530.6         
2131.533.532.2         
2234.232.630.0         
2330.432.431.8         
2432.232.929.9         
2535.433.232.8         
2638.131.733.7         
2731.731.428.4         
2833.831.229.7         
2931.930.8         
3032.030.3         
3134.423.5     
Avg: 32.831.830.6* 31.0        
Hi: 38.135.135.4* 34.8        
Lo: 28.421.222.7* 27.3        
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
202632.831.830.6* 31.0        
202531.731.629.128.025.321.922.723.327.130.430.731.7
202431.231.429.228.424.522.921.425.027.027.829.331.2
202331.532.131.927.824.523.923.125.226.828.328.532.5
202230.029.529.727.423.821.620.022.724.726.429.028.9
202130.630.628.826.624.221.721.724.125.328.526.130.1
202031.830.829.729.224.322.822.323.826.328.329.830.7
201932.331.331.326.924.922.523.323.827.227.131.032.5
201832.330.129.127.924.822.323.124.324.826.330.030.2
201731.932.830.926.424.722.722.924.727.727.027.431.5
201629.530.829.127.526.221.322.423.125.427.430.630.5
201530.028.529.525.623.920.820.222.823.826.628.928.8
201429.629.228.127.524.022.321.421.524.226.728.629.7
201330.127.827.726.022.520.421.024.126.627.927.929.0
201228.229.327.525.623.120.220.422.525.126.327.629.8
2011  * 28.125.322.520.220.721.724.425.128.726.9
Avg30.930.5* 29.4* 27.324.221.821.823.525.827.328.930.3