Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2020    265.2   117.8    31.5    33.8    31.5    31.2                                                        
    2019              6.1    22.6    39.9    34.0    14.7    23.9    21.1    64.2    72.6    62.5   124.2        
    2018    156.4    82.3    18.5    79.5    14.2    21.8     0.0     1.8    35.1    57.1   119.9    97.5   684  
    2017     31.0    76.0    87.8    42.8    20.4    15.0     1.2     1.6    14.8    88.8    14.0   109.7   503  
    2016     60.2    97.0    67.2     7.4     8.0    15.4     8.4     6.0    26.2   118.6    77.2   131.8   623  
    2015     88.0    81.2    84.2    11.2     1.4     3.6    15.4    24.2    35.8   108.4   162.4   126.0   742  
    2014     73.4   118.2   112.4    42.6    18.0     4.2     4.0     9.8    35.8    78.8    89.2    82.6   669  
    2013     59.2    38.6    60.4    53.4     5.4    11.2     0.0    19.6   110.2    15.0    53.0    31.4   457  
    2012     80.0    60.4    56.0    32.6    17.6    28.6    11.8     3.2     1.0   116.8    98.8   104.6   611  
    2011    115.3    46.7    55.6    45.7    40.6     4.3    13.4     5.1    21.6    41.4    69.0    42.1   501  
    2010     95.0    23.4    55.4    33.0    42.2    13.7     0.8    17.0    60.7    40.4    36.3    86.6   504  
    2009     85.1     8.9    38.6    25.6    34.5     4.1     8.6    13.2    27.4   103.4   183.4    45.2   578  
    2008     40.9    34.0    39.6    16.0    10.7    10.9     5.6    17.5     5.6    13.7     8.9    60.7   264  
    2007    136.1    53.6    81.5    22.3     7.4    16.2    20.6    11.9    10.4    42.7    50.5   112.0   565  
    2006    151.4    30.5    12.4    24.1    18.0    13.2     2.5     2.8    18.0    28.9   215.9    98.0   616  
    2005                                      3.5    29.7     8.1    27.9    30.2    63.7    77.0    65.5        
 Average     19      15       8      12      33      66      88      88     103      58      55      34     562  
 Std Dev     13       9       7       9      28      36      60      32      60      36      28      18     121