Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2023     36.0    68.3    30.5    25.6    13.0    18.8                                                        
    2022    185.7    63.0    59.7    71.4    34.8    33.8    17.8     0.0     1.3    93.5    83.8    98.3   743  
    2021    131.0    90.7    56.4    20.8    19.0     8.6     0.0     4.8    56.4    70.9    28.7     2.0   489  
    2020    210.8    91.9    27.7    34.5    30.0    26.4     8.4    23.9    63.8   112.5   145.0   184.7   960  
    2019    122.9    30.0     0.0    41.6     3.6    15.8    31.0    17.3    71.9    87.6    76.2   114.8   613  
    2018    167.1    80.8    18.3    71.6    18.3    20.1     0.0     2.3    42.7    69.3   145.3   159.5   795  
    2017     38.3    94.0   101.6    51.1    23.4    15.2     0.8     2.8    19.5   107.9   175.3   130.5   760  
    2016     79.2   144.7    76.7    16.2     9.1    24.4    10.9     5.6    37.8   152.9   117.1   145.0   820  
    2015    117.8    99.3   103.4    18.5     1.5     5.8    21.1    28.2    47.7   114.3   176.8   174.2   909  
    2014     26.4   140.2   143.0    56.4    24.6     5.3     7.1    13.7    43.2   108.7   114.8    94.7   778  
    2013      0.2    51.3    82.0    83.1    42.2    10.9     0.0     8.1   116.8    24.1    55.4    16.0   490  
    2012     45.5    51.3    44.9    32.8    16.3    30.2    15.0     2.8     1.3    90.4   123.2   131.8   585  
    2011             50.5    48.0    34.8    51.8     7.6    10.7     9.9    26.4    61.5   133.3    58.7        
    2010     97.5    26.1    63.5    37.6     0.8    14.5     1.0    20.8    75.9    55.1    72.6   151.4   617  
    2009    122.7    23.6    49.5    43.2    40.4     5.6     8.6    18.8    37.1   121.7   206.0    51.3   728  
    2008     61.4    60.9    58.9    27.2    12.2    16.0     0.0             9.4    29.2   135.6    83.3        
    2007                                      8.9    21.3    31.8    20.3    17.8    70.3    78.0   156.9        
 Average     21      16      10      12      42      86     117     110      96      73      60      42     714  
 Std Dev     15       9      11       9      31      34      48      55      62      36      36      20     147