Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2023     35.3    55.4    33.8    22.9    11.2    20.1    11.2     5.8    11.7    58.2    78.7                
    2022                                                                      1.5    80.0    78.0    85.6        
    2021    112.8    72.4    32.0    17.8    13.5     7.1     0.0     4.3    84.6    81.3   239.0    53.8   719  
    2020    195.3    95.5    23.9    24.6    30.2    22.6     6.1    16.0    50.0    92.9   111.5   144.0   813  
    2019    108.7    26.1    14.2    35.0    29.7    10.4    21.6    16.0    62.0    70.8    64.0   104.4   563  
    2018    137.4    60.7    19.5    64.5     9.6    16.8     0.0     1.8    38.1    56.9   120.6   156.7   683  
    2017                             22.9    24.6    24.4     0.2     0.0    17.0    99.8   151.4    96.8        
    2016     73.9   126.2    77.5    12.7     9.7    18.3    11.9     4.8    11.2   154.2   123.4    76.2   700  
    2015     95.2    72.9    67.3    17.5     1.0     3.3    16.2    21.3    43.7    98.0   173.5   161.5   772  
    2014     81.8   109.5   104.9    46.0    26.9     4.6     6.9    10.2    43.2    85.1    96.7    81.3   697  
    2013     71.6     0.0     0.2    49.3    46.5     9.7     0.0    22.6   135.9    20.8    59.9    39.3   456  
    2012     89.4    43.4    66.5    35.6    14.5    29.4    16.0     2.5     0.5   120.4    75.9    84.6   579  
    2011    129.0    60.7    63.5    58.7    43.2     5.3    12.4     0.0    24.9    45.7    50.3    47.2   541  
    2010     87.1    22.8    46.2    31.0    41.1    11.9     0.8    19.3    62.0    50.8    60.2   137.9   571  
    2009     90.4    20.1    41.9    37.3    37.1     5.1     7.9    10.9    36.3   109.7   182.9    45.2   625  
    2008     72.9    51.8    54.1    31.0    13.5    14.7     4.3    31.2    11.2    30.7   109.5    66.3   491  
    2007    198.6    66.8    91.2    24.4     8.6    16.8    27.4    19.1    16.5    52.0    50.3   146.8   718  
    2006    183.4    55.6    29.5    27.9    22.1    20.3     3.8     2.8    19.8    34.8   289.8   105.4   795  
    2005                                     14.7    14.5    11.4    25.1    39.9    78.0    99.6    63.0        
 Average     22      14       9      12      37      75     117      94     110      59      48      33     648  
 Std Dev     13       8       8      10      33      34      65      40      47      33      29      15     110