Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2023     28.9                                                                                                
    2022    117.3    53.3    52.8    63.2    28.4    28.2    16.2     0.0     0.8    86.4    76.2    85.3   608  
    2021                                                                     86.9    94.5   250.2   121.4        
    2020     42.4    95.5    24.9    31.2    25.9    21.6     7.9    20.0    50.0    87.6                        
    2019    110.7    20.8    15.0    37.1    30.0    14.2    25.2    16.0    60.7    24.4                        
    2018    138.4    74.7    15.5    61.2    11.4    16.2     0.0     1.8    33.8    52.3   119.6   138.2   663  
    2017     33.8    77.2    84.5    42.4    20.0    12.4     0.8     2.0    16.2    95.2   147.6   107.9   640  
    2016     67.1   129.8    68.3    11.9     7.9    20.1     9.1     4.6    33.5   131.8    99.8   127.5   711  
    2015    112.0    57.6    81.3    16.8     1.3     5.8    13.5    25.7    41.4   116.3   181.6   144.5   798  
    2014      0.8   107.2   122.7    50.0    20.8     0.8     0.0     0.0    25.4    91.7   109.2    89.1   618  
    2013     67.0    51.0    80.0    58.2    38.8    10.2     0.0    25.4   123.7    20.8    44.2    24.6   544  
    2012     94.2    58.2    64.8    31.5    17.5    32.5    16.0     2.5     1.0   143.2   112.7   114.3   688  
    2011    117.3    60.9    65.0    68.8    44.4     6.6     9.6     7.6    21.3    55.4   115.0    55.6   628  
    2010     69.6    21.1    51.0    33.5    43.2    14.0     1.0    16.0    60.7    43.7    54.3   120.4   528  
    2009    106.4    18.0    42.9    39.9    34.6     5.1     7.6    15.0    31.7    95.3   166.9    40.4   604  
    2008     48.5    49.8    45.2    19.3     9.9    13.5     4.8    29.7     6.6    21.6   101.1    53.0   403  
    2007    153.2    61.0    89.9    25.1     8.6    17.8    21.6    12.2    13.4    54.3    58.2   116.6   632  
    2006    150.6    39.9    28.4    27.4    17.0    18.3     2.5     3.0    20.1    26.2   231.9    86.1   651  
    2005                                             20.8    11.2    32.3    37.3    73.4    83.1    61.5        
 Average     86      61      58      39      22      15       9      13      37      73     122      93     622  
 Std Dev     45      31      30      17      13       8       8      11      31      38      60      37      91