JanFebMarAprMayJunJulAugSepOctNovDec
130.831.432.326.725.9       
227.830.232.022.024.0       
330.130.530.327.725.6       
430.031.531.325.725.8       
530.128.929.330.725.2       
630.731.028.829.327.0       
731.431.628.230.827.4       
830.831.723.728.228.4       
930.332.422.929.324.7       
1030.732.423.429.221.9       
1128.732.830.029.421.8       
1228.632.729.326.924.2       
1330.532.230.927.726.7       
1432.031.230.826.323.2       
1534.432.831.426.723.8       
1638.034.631.526.926.0       
1731.629.034.929.126.3       
1830.830.228.329.725.8       
1930.130.728.329.722.8       
2030.031.529.530.426.4       
2132.230.331.329.428.3       
2237.530.933.427.4        
2332.531.531.827.3        
2435.332.529.923.4        
2531.332.924.923.5        
2633.132.026.229.3        
2730.731.425.728.9        
2832.732.823.728.1        
2932.724.229.6        
3032.932.029.9        
3133.432.7     
Avg: 31.731.629.128.0* 25.3       
Hi: 38.034.634.930.8* 28.4       
Lo: 27.828.922.922.0* 21.8       
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
202531.731.629.128.0* 25.3       
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
Avg30.830.4* 29.327.1* 24.221.821.723.525.727.128.830.2