JanFebMarAprMayJunJulAugSepOctNovDec
130.831.432.326.725.923.920.020.421.6   
227.830.232.022.024.023.619.219.423.6   
330.130.530.327.725.623.620.619.826.8   
430.031.531.325.725.823.023.324.227.7   
530.128.929.330.725.222.024.226.428.9   
630.731.028.829.327.024.025.525.524.0   
731.431.628.230.827.425.222.323.725.4   
830.831.723.728.228.422.723.821.025.1   
930.332.422.929.324.719.825.219.927.8   
1030.732.423.429.221.919.723.722.129.7   
1128.732.830.029.421.819.522.123.023.0   
1228.632.729.326.924.219.423.023.724.5   
1330.532.230.927.726.719.323.924.224.9   
1432.031.230.826.323.221.424.522.525.6   
1534.432.831.426.723.823.920.523.726.5   
1638.034.631.526.926.024.225.824.726.0   
1731.629.034.929.126.318.425.022.928.8   
1830.830.228.329.725.822.620.823.230.2   
1930.130.728.329.722.823.721.717.529.1   
2030.031.529.530.426.421.723.917.924.4   
2132.230.331.329.428.320.223.220.028.5   
2237.530.933.427.426.723.422.326.0    
2332.531.531.827.326.423.524.527.0    
2435.332.529.923.427.824.321.226.0    
2531.332.924.923.529.521.922.925.6    
2633.132.026.229.328.921.021.825.5    
2730.731.425.728.928.822.321.327.8    
2832.732.823.728.123.822.520.026.3    
2932.724.229.623.419.822.925.4    
3032.932.029.918.416.225.621.2    
3133.432.718.820.024.6  
Avg: 31.731.629.128.025.321.922.723.3* 26.3   
Hi: 38.034.634.930.829.525.225.827.8* 30.2   
Lo: 27.828.922.922.018.416.219.217.5* 21.6   
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
202531.731.629.128.025.321.922.723.3* 26.3   
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* 29.327.124.221.821.823.5* 25.727.128.830.2