Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2020              0.2                                                                                        
    2019    164.1    16.5    14.2    49.5    35.8    26.7    19.6     7.4                                        
    2018    240.5    38.3    41.4   116.6    10.1    25.1     1.8     1.8    88.6    93.7   176.3   208.5  1043  
    2017     73.9   154.9   159.5    92.7    40.4    37.1     0.0     3.6    21.3    38.6   224.0   120.6   966  
    2016    164.8   132.6   186.2    15.2     8.9    27.2    15.0     0.0            79.0   212.8   143.0        
    2015    104.9   109.7    34.5    28.2     5.6     8.6    12.5    20.3    12.4     0.0    40.9   251.9   630  
    2014    118.3   174.5   148.3    47.0    46.0     6.8     8.4    13.5    38.3   141.7   131.3   111.0   985  
    2013     65.5    62.7    70.8    62.2    69.6    27.2     0.0    28.7   113.3    27.7   110.5    29.2   667  
    2012    122.9    80.0   110.0    48.3    25.7    40.1    13.4             1.3   132.1   135.9   174.8        
    2011    156.9   105.7   157.5    66.3    62.5    14.2    16.8    10.2    52.3    59.1   129.2    61.2   892  
    2010    196.8    77.2    94.2    67.3    68.8    22.1     1.5    26.2    95.0    13.4    84.3   152.7   899  
    2009     74.4    39.9    65.5    25.7    51.8     6.8    10.4    13.5    49.0   109.5   318.8    91.9   857  
    2008    117.1    49.3    46.7    48.5    15.7    29.0    11.2    19.8    20.1    41.4    17.5    97.5   514  
    2007                    125.0    46.5    21.3    28.7    21.1    24.6     0.2     3.8   122.1   274.6        
 Average     96      55      36      23      10      14      45      62     142     143     133      80     828  
 Std Dev     56      27      23      11       7      10      39      49      83      74      53      53     181