Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2023              8.9     9.4             0.5    20.1                                                        
    2022     36.1    47.5    66.3    81.8    42.9                     0.0                                        
    2021                                                                                     12.4    15.8        
    2020    244.1    92.7    36.1    53.4     9.9             0.2    28.4    69.6    90.4   106.1    65.0        
    2019    116.3    58.7    20.1    57.4    26.2    16.5    23.4    13.2    41.1    85.1    44.9    65.8   569  
    2018    191.0    55.6    57.9    78.7     1.8    17.8     1.5     2.8    50.8    70.8   139.9   147.8   816  
    2017     63.5   121.1   138.7    96.5    40.9    26.4     1.0     3.6    32.7     0.2   151.4   126.5   803  
    2016    127.5   108.5   146.3    18.5    10.9    33.5    15.5     6.9    26.4   157.7   115.6   122.7   890  
    2015    101.8    84.3    98.5    24.6     3.0     5.8    12.2    27.7    47.5   110.7   101.8   168.7   787  
    2014     90.4   147.6   112.8    50.3    36.6    18.8    10.9     7.9    34.0   121.7    82.0   104.1   817  
    2013     79.2    46.5    41.6            29.5    16.2     0.0    34.3    49.8    26.4    82.5    32.7        
    2012     95.0     3.3     0.2    60.5    28.5    54.3    19.0     6.3     1.0   122.2   100.0   144.8   635  
    2011    113.0    55.1   129.3    54.1    58.9     5.6    20.1     7.9    36.1    38.6    85.6     1.5   606  
    2010    132.8    58.2   117.3    29.5             9.4     0.5    30.5    34.0     3.8     4.3    38.6        
    2009      1.5    25.1    19.8                     5.6     8.6    11.2     1.2     0.0     0.0    67.5        
    2008     84.3    27.7    85.3    38.3    25.9    40.9    11.7    40.4    17.5    49.5   101.1    50.3   573  
    2007                                     25.1    30.5    29.0    26.1    47.8    79.2    82.0   166.4        
 Average     24      22      11      16      35      68      81      88     105      63      72      54     721  
 Std Dev     17      14      10      13      19      50      46      56      60      41      50      24     124