Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2023     30.2    58.4    29.7    19.3    16.3     9.6    10.7     7.6    10.2    12.2                        
    2022    106.4    52.3    48.5    67.6    32.5    30.0    16.0     0.2     0.5    87.6    59.9    63.2   565  
    2021                                                              0.0    90.7    89.1   133.1    55.6        
    2020    207.5   104.6    28.2    27.2    38.6    24.4     7.9    17.5    58.4    92.9   102.6    32.0   742  
    2019    105.4    36.3    19.0    36.8    33.0    15.0    25.6    16.0    69.1    68.3    62.7    96.3   584  
    2018    141.2    69.6    14.5    70.9     7.6    21.1     0.5     1.3    35.3    54.4   111.8   130.6   659  
    2017     33.5    88.1    78.8    54.1    26.9    20.6     1.0     2.0    23.1   101.6   124.4   115.5   670  
    2016     67.6   112.5    64.0    12.4     9.4    26.7    13.0     6.3    36.3   130.5    92.4   127.0   698  
    2015    103.6    90.4    82.3    15.5     2.3     5.1    13.5    33.3    46.7    95.5   172.0   140.2   800  
    2014     88.1   117.4   115.3    48.0    22.4     4.0     6.6    15.0    51.0    94.2   102.1    84.1   748  
    2013     67.8    51.8    81.0    13.2    39.9    11.2     0.0    23.4   137.1    19.2    71.1    40.9   557  
    2012     97.3    68.6    72.4    38.4    21.6    33.0     8.6     2.0     1.5   142.2    97.3   112.0   695  
    2011    114.5    66.8    70.3    80.0    60.2     6.9    15.5     8.9    26.7     8.6   119.1    51.0   629  
    2010     94.5    23.3    62.5    31.0    40.4    10.4     1.3    17.3    65.5    42.1    63.8   130.1   582  
    2009     78.2    22.3    47.8    49.5    40.4     5.1     8.9    17.8    38.9    86.6   170.7    44.2   610  
    2008     59.2    45.7    51.8    36.3    11.2    12.9     6.6    27.9     8.9    33.0   104.4    61.2   459  
    2007    175.0    64.5    87.6    28.4     7.9    17.8    24.6    14.0    13.2    42.9    54.8   128.3   659  
    2006    154.9    36.8    24.6    35.8    19.3    17.0     3.0     3.6    23.4    35.3   236.2    86.1   676  
    2005                                     20.1    33.8    11.2    30.2    29.5    80.2    86.9    62.5        
 Average     25      17      10      13      40      69     109      87     101      65      58      39     645  
 Std Dev     15      10       8      11      34      39      47      36      47      29      28      20      85