Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2021    119.9    94.2    99.8    17.5    31.2    34.3                                                        
    2020    352.6    80.2    63.2    14.7    58.4    63.3     4.3    39.4    53.1   134.1    93.2    56.4  1013  
    2019    225.0    38.1     6.8    82.3    11.9    25.4    40.9    21.3    67.3   111.2    79.7   130.5   841  
    2018    351.8   100.6    39.4   113.8     6.1    51.3     2.5     4.6   110.5    71.1   150.9   387.3  1390  
    2017     98.3   129.0   166.9   164.8    68.1    37.6     5.3     4.6    58.6    83.5   278.1    78.2  1173  
    2016    227.1   173.7   287.0    14.0    25.4    61.0    25.1    41.2    61.2   328.7   398.0   110.2  1752  
    2015    119.1    93.0    96.0    26.4            10.4    19.1    66.8    41.6    72.9    72.9   173.5        
    2014     80.8   184.4   152.9    81.8    65.8    15.0    28.5    10.9    38.6   208.0    96.5   253.5  1217  
    2013                                             52.6     1.8    44.5   114.3    17.8   113.5    78.5        
 Average     39      16      29      68     128     160     159     197     112     114      64      38    1230  
 Std Dev     19      15      22      29      98     117     112     110      49      88      56      26     316