Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2020    309.4   124.4    60.7    21.6    65.3    83.1                                                        
    2019    167.4    44.4     9.4   104.6    12.9    21.3    59.7    44.2    91.2   107.7   102.6   130.3   896  
    2018    373.1   132.3    80.3   110.7     9.1    43.7     4.0     9.4   169.9    97.0   156.7   279.4  1466  
    2017     76.7    88.4   164.8   143.5    82.0    29.0    11.7     6.6    42.2   122.2   215.4    92.7  1075  
    2016    221.7   178.6   247.7    30.0    28.7    58.4    18.3                            51.3   137.9        
    2015    167.9   141.7   113.8    77.7     3.5    26.7    33.0    81.8    92.4   118.9   134.1   431.8  1423  
    2014                                             12.4    48.0    13.5    72.6   261.9   145.5   129.0        
 Average     39      29      31      94     142     134     200     219     118     113      81      34    1214  
 Std Dev     25      22      32      47      68      55     131     107      46      84      48      33     275