JanFebMarAprMayJunJulAugSepOctNovDec
119.022.620.237.361.486.9      
226.713.727.841.367.986.6      
312.321.635.633.481.686.6      
414.840.336.923.876.889.5      
521.735.229.623.168.787.0      
613.036.517.328.856.091.1      
714.739.010.433.856.092.9      
827.840.018.439.365.391.2      
929.632.021.953.070.8       
1028.540.027.059.881.7       
1123.040.227.170.574.4       
1213.538.017.551.366.4       
1320.947.717.146.261.9       
1432.734.836.241.173.9       
1538.920.631.348.076.7       
1630.917.025.453.878.9       
1720.237.719.350.573.3       
1819.342.219.850.853.7       
1926.630.029.561.668.5       
2024.930.420.038.280.4       
2123.58.222.435.480.2       
2232.8-7.025.044.382.9       
2334.1-5.831.749.888.7       
2433.1-4.035.550.383.0       
2522.226.629.154.883.5       
2636.730.726.863.582.4       
2728.737.723.456.482.6       
286.225.521.856.980.5       
290.825.257.683.1       
303.629.757.382.2       
318.828.875.7    
Avg: 22.227.625.447.174.2* 89.0      
Hi: 38.947.736.970.588.7* 92.9      
Lo: 0.8-7.010.423.153.7* 86.6      
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
202322.227.625.447.174.2* 89.0      
202223.226.441.043.865.178.283.784.275.860.231.915.5
202131.418.251.155.467.686.089.785.478.160.245.324.8
202022.631.344.152.165.681.684.585.471.647.947.734.9
201920.26.831.253.461.576.482.177.369.347.136.426.3
201823.919.034.446.574.981.184.284.167.551.831.731.8
201719.630.639.056.570.279.989.178.372.059.640.227.2
201623.936.9* 51.654.9* 69.979.2* 82.481.670.858.551.518.9
2015* 26.020.5* 49.257.564.3* 76.482.083.5* 78.059.943.6* 27.4
201423.417.8* 34.751.5* 64.571.979.0* 77.070.5* 58.628.827.2
2013* 22.128.930.2* 43.6* 65.774.281.3* 82.774.150.3* 36.215.0
2012* 33.232.756.5* 58.867.078.2* 87.780.574.7* 51.8* 36.822.2
2011* 15.020.3* 27.447.3* 61.3* 72.482.3* 79.170.5* 57.9* 42.233.0
201017.1* 18.139.859.4* 64.774.081.282.165.5* 58.336.516.9
200916.920.629.249.966.6* 72.0* 76.577.6* 76.644.550.2* 15.3
200823.825.441.754.964.773.383.382.469.156.438.416.6
200728.418.447.453.4* 53.478.487.978.972.557.841.626.6
200634.729.040.663.169.879.191.084.368.051.741.635.0
200519.535.742.959.763.377.185.180.675.458.641.927.9
2004  * 50.858.262.672.081.375.772.257.047.131.2
Avg* 23.5* 24.4* 40.4* 53.3* 65.8* 77.5* 83.9* 81.1* 72.2* 55.2* 40.5* 24.9
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