Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2024      8.9    13.4     9.1     6.6                                                                        
    2023     18.3     8.9     7.4     2.5     3.5     7.4     9.1     0.8     4.3    12.2     3.3     1.5    79  
    2022    107.4    44.2    40.6    30.5    10.7    15.2    14.2     0.2     0.5    82.1    62.2    68.8   477  
    2021     26.4    16.5    22.3    17.3     0.0     0.0     0.0     0.2    80.5    83.5   223.0   112.0   582  
    2020     20.1    76.4    22.8    27.4    24.1    23.6     8.4     9.1    43.2    39.4   112.8   120.1   528  
    2019     91.2    22.3    16.5    35.0    27.9     9.9    17.5    18.3    50.5    10.4     2.0                
    2018    118.1    70.1    15.2    53.8    10.7    16.8     0.0     1.5    24.6    47.5   121.1   125.0   604  
    2017     26.9    69.1    39.6    17.0    20.6    11.7     1.8     2.0            89.7   142.2   103.9        
    2016     52.1    96.0    61.2    11.2    12.2    22.8     8.9     8.6    30.0   105.9    75.2   116.8   601  
    2015     91.9    71.4    72.1    10.7     1.0     3.8     1.3     0.0    30.7   112.7   179.6   134.6   710  
    2014     74.4   111.3    96.3    43.7    18.0     4.1     1.8            20.1    80.8    90.2    78.0        
    2013     50.8    38.3    58.2    56.4    35.3    10.2     0.0    20.3   115.6    19.5    55.3    39.9   500  
    2012     84.1    57.1    54.3    11.4    15.5    31.5    15.5     3.5     1.5   117.3    98.5    88.6   579  
    2011    122.4    48.5    68.6    56.9    49.0     6.1    13.2     6.9    21.1    50.5   104.9    51.8   600  
    2010     77.2    19.3    47.2    30.5    42.1    11.4     0.8    15.5    66.8    40.9    44.2   132.1   528  
    2009      8.6     0.0    36.1    35.5    28.2     3.8     8.1    12.7    27.4   102.6   162.0    38.9   464  
    2008     50.8    41.7    51.0    19.1    12.2    13.2     5.6    29.7     6.1    22.8   104.6    56.4   413  
    2007    167.9    63.8    88.4    22.1     9.4    15.2    24.1    14.0    12.4    50.5    54.8   120.9   644  
    2006    157.0    38.6    26.9    28.7    19.3    15.5     3.0     2.5    21.3    30.0   251.0    94.7   689  
    2005                                             20.3     7.4    30.0    36.8    79.2    84.8    64.5        
 Average     13       7      10      33      62     104      86      71      48      44      27      19     533  
 Std Dev      8       7      10      30      35      66      38      48      30      26      17      14     150