Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2023      0.0     0.0     0.0     0.0     0.0     0.0                                                        
    2022      0.0     0.0     0.0     0.0     0.0     0.0    14.7     0.0     1.3    65.3    60.7     0.0   142  
    2021     95.2    66.5     0.0     0.0     0.0     0.0     0.0     0.2    76.2    15.7     0.0     0.0   254  
    2020    180.1    85.1    10.1                     0.0     6.3    18.0    26.9    77.5   104.9   128.8        
    2019     92.7    23.9    15.7    34.3    26.2    10.7    19.5    13.7    53.8     0.8            86.6        
    2018    125.0    62.7    15.5    55.9    17.3    16.7     0.0     1.5    30.0    47.2   111.5   116.3   600  
    2017     27.2    67.3    70.9    38.1    22.6    13.5     0.8     1.8    13.7    84.1   129.0    92.7   561  
    2016     63.2   105.9    64.5    12.2     8.6    18.3    10.9     5.6    27.4   107.9    82.5    97.3   604  
    2015     83.3     6.1     2.0     7.9     1.3     4.8    19.6    21.6    33.3    16.7   168.4   133.3   498  
    2014     71.4    90.2    92.5    39.9    20.6     3.8     5.6     9.2    36.3    60.5    73.1    74.7   578  
    2013     50.8    40.4    59.2    58.9    31.5     8.9     0.0     4.1    94.0    17.2    50.8    32.8   448  
    2012     88.9    59.9    66.3    32.8    14.7    28.4    12.9     0.0     0.0   123.2    91.4    95.0   614  
    2011    129.3    66.5    66.8    71.9    47.5     7.3    11.9    10.4    23.1    37.8   110.0    44.4   627  
    2010     85.1    22.6    54.3    30.5    39.6    10.9     0.2    14.7    59.4    42.2    58.4   125.2   543  
    2009     86.9    16.5    31.7    30.5    29.2     4.3     7.1    13.0    29.5    99.3    92.7    43.2   484  
    2008     43.4    35.3    40.4    14.2    10.2    11.9     4.6    25.7     7.1    23.1    89.9    51.3   357  
    2007    148.6    51.6    82.3    22.1     7.6    16.5    20.8    12.9    12.2    42.1    49.0   103.4   569  
    2006    139.4    29.7    23.3    27.4    18.3    17.0     2.5     3.0    20.8    31.7   230.4    80.5   624  
    2005                                             30.5    11.2     2.3     8.6    70.9    80.8    62.2        
 Average     11       8       9      31      54      93      76      84      46      39      28      17     500  
 Std Dev      9       7       8      26      35      51      41      49      32      31      21      14     144