Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2023      0.0     0.0     0.0                                                                                
    2022                                                                      0.0    81.8   163.3    30.2        
    2021     56.2     2.4                                                                                        
    2020    247.0   137.4    65.6    40.2    40.6    26.8     0.0     0.0     0.0     0.0    11.2    95.8   665  
    2019    156.8    42.8    19.6    57.2    25.8    11.4    24.0    14.6    98.2    88.6    81.2   118.6   739  
    2018     80.0   102.0    38.2   108.2     8.8    15.2     0.2     0.6    51.0    71.2   191.4   205.8   873  
    2017     67.6   140.8   163.4    69.2    40.0    28.4     0.8     0.0    28.2   146.4   161.0   169.6  1015  
    2016    139.3   212.6   138.6    13.0    13.2    25.4    11.8     4.4    44.6   105.6   105.4   197.2  1011  
    2015    160.6   118.2   144.0    43.2     2.6     4.4     0.0            41.0   163.8   251.4   259.6        
    2014    153.4   146.6   202.8    82.2    40.8     4.8     7.0     1.2    39.2   128.6   181.6   167.4  1156  
    2013     97.8    88.2   109.6    55.2    11.4    23.0     0.0     5.8    31.6    40.6    61.2    89.4   614  
    2012    158.6   108.8   136.8    52.4    22.0    35.8     9.6     0.0     1.6   165.4   102.2   179.0   972  
    2011    271.8   110.6   134.4   116.2    57.2     4.2    19.0     0.0    36.4     0.0    82.6    85.6   918  
    2010                                                                     48.0   119.2    89.6   217.8        
 Average     35      93     124     151     132     101     105      64      26      18       7       3     884  
 Std Dev     27      57      67      67      78      61      65      31      18      11       9       5     179