Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2023                                              1.3    13.2     6.3    11.4    27.2                        
    2022    132.6    63.0    63.3    77.0    41.1    33.0    17.0     0.2     0.5                                
    2021                                                              1.5   107.7    99.0   304.8   135.6        
    2020    212.1   114.5     6.1                                                                                
    2019    129.0    39.6    18.5    41.4    32.8    15.7    24.9    18.0    73.7    79.2     6.6   117.6   597  
    2018    155.5     0.2    22.8    77.5     9.1    20.1     0.0     1.5    44.2    70.1   137.6   144.8   683  
    2017     44.7    93.2    65.8    59.1    29.5    40.4     0.2     2.5    16.0   112.5   177.5   141.2   783  
    2016     87.4   158.5    84.8    14.0     8.9    21.1    10.9     4.3    32.0   154.4   117.8   131.5   826  
    2015    120.1    90.2    94.5    21.8     3.3     4.1    17.3    24.1    48.0   102.4   183.4    67.3   776  
    2014     89.9   131.6   138.7    53.1    31.2     5.6     7.6    11.4    49.5   102.4   102.3   105.2   828  
    2013     70.8    51.0    80.3    61.0    45.5    11.9     0.0    28.4   135.6    22.1    66.0    40.1   613  
    2012     76.4    72.1    80.0    38.1    19.0    34.5     8.4             0.8   145.0   101.3   128.0        
    2011    153.7    72.9    80.0    83.6    56.1    10.7    14.2    10.4    30.5    58.9   128.5     4.3   704  
    2010    112.5    27.9    64.3    37.6    48.0     5.6     1.0    22.6    86.9    60.2    87.6   175.2   729  
    2009     84.3    28.2    49.5    42.4    19.3     6.3     8.6    19.8    40.4   114.6   203.4    50.8   668  
    2008     71.6    48.0    61.0    47.5    10.9    14.0     6.6    33.8    13.2    37.3   115.1    82.0   541  
    2007    212.1    72.9   104.2    34.5    10.9    21.3    28.4    24.1    17.8    57.4    70.3   159.0   813  
    2006     64.8    56.6    26.7    28.5    24.1    20.6     3.0     3.0    22.1    32.5   227.1    56.9   566  
 Average    114      70      65      48      26      17      10      13      43      80     135     103     702  
 Std Dev     50      41      35      21      16      12       9      11      38      41      74      50     100