Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2020    110.5     0.0     0.0     2.5    59.9    52.8    16.0    25.4                                        
    2019    180.3    54.6     6.1    77.0    14.2    19.6    51.0    34.0   109.7    92.2    71.6   110.0   820  
    2018    314.5    93.0    10.4    16.3     5.6    54.3     5.1    20.3   115.1    82.5   141.2   266.4  1125  
    2017     74.2   141.5     0.0     5.1    46.0    35.5     0.0     3.6     0.2    93.7   245.6   123.2   769  
    2016    192.3   145.5   292.1    20.6    50.0    81.5    33.0    15.2    50.8   299.0   259.8   116.8  1557  
    2015     44.5   134.9    62.2    43.7     2.8    17.8    14.0    36.3    41.9    77.7   115.3   320.8   912  
    2014    117.8   183.9   142.5    41.1    37.6    19.8    27.9    16.0    46.2     2.5    85.1     2.8   723  
    2013      2.5    12.7    17.8    25.9    79.5    51.0     0.0    34.0   113.6    25.9   116.8    21.1   501  
    2012      0.8     0.0    60.8    37.2    47.8    71.9    22.3    10.9     2.5   159.5    79.0   161.0   654  
    2011     84.4    70.0   195.4    35.6    70.4    14.0    47.2     2.4    56.8    46.2   142.0    12.8   777  
    2010    235.5   133.1   143.0   158.5    60.2    35.3     2.0    12.4            65.2   159.4   226.4        
    2009     36.0     9.4    19.6    18.8    54.1    13.0    13.0             8.1   135.6   326.9    69.1        
    2008                                                                                             10.7        
 Average    120     116      82      79      40      44      39      19      54      98     158      19     870  
 Std Dev    106      97      66      94      42      25      23      18      45      80      83      12     309