Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2023                              0.0     0.0     0.0     0.0                                                
    2022     86.1    73.6    49.5    63.2    27.4    29.0    14.2     0.0     0.8    17.8                        
    2021     69.8    83.6    41.1    18.0    23.4     8.4     0.0     0.0    73.1    77.2    53.8    23.1   472  
    2020     69.9     3.3     8.1     0.0     8.9    19.0     7.1    10.9    38.1    89.9   113.5    91.2   460  
    2019     87.9    20.3    15.8    37.1    29.0    13.0    21.3    16.5    33.7     1.8    29.5    51.6   357  
    2018    129.5    79.7    15.2    58.2    11.7    16.8     0.0     1.8            42.4    95.8   116.3        
    2017     23.3    58.7    81.0    37.3    20.8    11.7     0.8     2.0    14.2    68.3    76.5   107.2   502  
    2016     68.1   110.2    69.3    10.7     9.1    16.0    10.7     7.6    28.2   116.8    87.1   119.1   653  
    2015     84.6    63.5    68.1    12.7     2.0     4.8    10.2    20.8    16.7   107.2   167.9   101.1   660  
    2014     75.2   108.7    90.2    38.9    17.8     4.8     4.3     9.7    32.8    36.6    95.2    84.8   599  
    2013     45.7    35.5    58.2    66.8    36.3    10.7     0.0    21.1   111.0    21.3    61.4    38.8   507  
    2012     74.2    57.1    60.7    30.7    15.2    28.7    13.4     2.5     1.5   106.7    86.9    88.6   566  
    2011    127.3    63.5    68.6    64.5    45.2     6.9    12.4     1.5    10.2    49.3   110.7    49.0   609  
    2010      5.3    19.3    49.5    34.8    41.4    11.2     0.5    15.2    59.7    41.6    52.1   117.3   448  
    2009     94.7    15.5    35.3    34.0    28.4     4.3     6.6    13.7    27.2    96.8   140.5    30.7   528  
    2008     46.2    45.2    43.4    17.0     8.9    12.2     5.3    25.9     6.3    30.2    91.4    54.6   387  
    2007    179.8    36.8    84.6    23.8     4.0    17.0    22.9    13.5    13.0    52.3    58.9   113.0   620  
    2006    165.1    43.2    31.7    31.7    21.8    18.5     2.3     3.0    21.8    34.3   264.9    96.5   735  
    2005                                             21.8     9.9    30.0    39.9    80.7    89.9    70.6        
 Average     13       7      11      31      60      99      80      84      54      51      32      20     540  
 Std Dev      8       7       9      28      35      54      32      46      31      25      21      13     106