Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2019     100.3     40.1     30.5     46.7     36.8     11.2     10.9      0.0      0.0      0.0      0.0                  
    2018     138.7     79.7     16.7     74.2     10.2     22.1      0.0      2.3     31.5     63.7    130.8    124.7    695  
    2017      31.2     95.7     91.2     45.9     25.6     12.2      1.8      1.5              98.3    137.7    125.7         
    2016      55.9    123.4     58.9     12.4      9.6     32.3      6.8      8.9     35.3    133.1     89.9    147.1    714  
    2015     116.0     98.3    100.1     11.7      2.0      4.3     13.5     30.2     47.7    122.9    192.8    135.1    875  
    2014      95.7    130.0    124.7     48.8     23.4      5.6      7.6     19.3     47.2    106.4    113.0     85.1    807  
    2013      63.7     45.4     79.0     76.2     54.4     16.5      0.2     24.9      4.3     19.5     76.9     45.5    507  
    2012      96.3     55.6     63.5     32.2     20.8     37.6     14.7      2.8      1.5    151.6    111.5    106.9    695  
    2011     136.9     61.5    110.5     84.8     60.2      5.8      0.5      0.0      0.0     58.9    117.8     51.6    688  
    2010      21.1     21.1    102.1     44.5     44.2     16.5      1.3     18.8     18.8     74.9    110.5    164.6    638  
    2009      95.8     21.3     60.2     50.5     32.0      0.0                       12.4    137.4    195.3     46.5         
    2008                                           0.0     15.7      7.1     38.1      8.6     31.7    129.8     60.2         
 Average      87       70       76       48       27       15        6       13       19       83      117       99      702   
 Std Dev      39       38       34       24       20       11        5       14       19       50       51       43      109