Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2022     80.0    55.1    88.9   122.4    60.4    45.2    32.0                                                
    2021    140.5    69.8    18.3    11.7    11.4    37.3     0.0     4.1   106.2   104.1   254.0   133.9   891  
    2020    226.6    75.9    30.7    48.0    51.0    39.6    13.7    29.5    57.1    58.1   139.4   132.3   902  
    2019     18.0    24.1     5.8     0.0    22.1    19.8    13.7    14.0    80.0    92.7    59.9    97.5   448  
    2018     24.1     6.6     7.6    12.4     4.3    33.0     0.8     0.0    10.7    13.4    14.7    28.2   156  
    2017     67.0   114.5    71.9    92.4    53.3    32.5     1.0     1.8    27.9   101.1   180.1    58.6   802  
    2016    164.1    98.5   170.4    16.5    11.7    31.0    14.0     3.3     0.8    65.3   144.3   102.9   823  
    2015     97.3    98.0    93.7    23.9     4.8     3.6    17.5    12.7                    31.5   229.3        
    2014     87.1   138.4   112.2    40.9    35.8    17.3     9.9    19.3    32.8     1.0    58.7   121.9   675  
    2013     80.2    51.8    74.6    47.5    73.1    35.3     0.0    35.0    92.7    21.0    86.1    29.4   627  
    2012                             35.8    25.9    47.0    19.0     3.0     1.0   143.0   143.5   178.3        
    2011    131.8    76.2   129.8    50.5    66.3    17.5    13.7     4.6    49.8    55.4    93.2    14.5   703  
    2010    155.2    76.5    96.5    16.0    40.9    21.8     1.8    28.4    83.0    50.8     1.5    59.7   632  
    2009     77.4    46.5    60.9    32.8    48.5     9.4     7.6     8.9    60.7   134.6   260.4    83.0   831  
    2008    124.2    35.3   101.3    39.9    22.3    42.2    11.4    44.2    21.1    81.5   110.7    78.7   713  
    2007                                                              0.0    76.2    87.4   119.4   219.7        
 Average     14      50      72     113     105     105      69      76      39      35      29      10     683  
 Std Dev     14      35      43      78      66      56      36      48      32      23      13       9     210