Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2022      0.0     0.0     0.0                                                                                
    2021      0.0     0.0     0.0     0.0     0.0     0.0     0.0     0.0     0.0     0.0     0.0     0.0     0  
    2020    219.7    60.4    35.0    38.4    57.7    43.4    17.8    43.7     0.0     0.0     0.0     0.0   516  
    2019    118.8    53.6     4.3    53.6    12.7    31.5    31.0    10.9    86.6    70.1    68.3    57.9   599  
    2018    226.0    65.0    31.8    83.3     7.6    38.3     4.3     2.0   111.0    63.7   107.7   183.1   924  
    2017     44.7   116.1    89.4   104.6    22.9    20.3     2.3     4.3    45.2    92.7   220.7   118.3   882  
    2016    112.3    93.7    82.5     0.2    29.0    33.8    25.9    17.3    12.4     0.8    85.3   112.0   605  
    2015     71.8   123.2    47.2    16.7     6.6    13.2     0.0                    56.6    77.2   211.8        
    2014     62.0   117.1    89.6    25.1    40.9    13.4    37.3    19.8    34.5   169.4    90.4   148.1   848  
    2013     47.2     0.2     4.3    18.8    75.9    39.4     0.0    33.8   113.8     9.6    75.9    17.7   437  
    2012     90.4    63.0    72.6    30.7    23.1    54.4    20.8     6.1     4.1   134.9   107.2   129.3   737  
    2011    115.0    79.8    35.6     0.0    61.5    26.4    60.7     0.0            21.6   107.9    41.9        
    2010    186.4    71.9    84.8    75.7    26.9     4.0     1.3    26.9    57.1    49.8   114.5   193.0   892  
    2009     35.3     0.0     2.0     3.0    11.4    13.0                            60.2   256.5    64.8        
    2008    103.1    31.2    91.1    39.1    28.4    58.7     0.8            12.2    70.8    95.5   114.8        
    2007                             56.1    13.7    78.0    27.2    43.2    53.8    87.8    99.3   121.2        
 Average     36      28      31      16      17      44      59     100     101      96      58      45     643  
 Std Dev     33      22      22      19      16      42      50      66      68      71      44      37     283