Year        1        2        3        4        5        6        7        8        9       10       11       12    Total
    2023     74.2    58.6    43.6    42.0    12.4    16.0                                                        
    2022    115.6    40.8    74.8    53.8    14.0     2.4    25.0     0.6     3.6    39.8    86.8   129.0   586  
    2021     93.6    56.2    12.2    17.0    13.6    40.8     0.0     4.4    91.8    71.2   236.0   100.4   737  
    2020    211.4    74.2    23.6    43.8    32.8    15.6     0.0    27.2    55.6    66.0    92.4    93.0   736  
    2019    119.6    60.2     9.8    53.0    23.6    16.2    20.6    13.2    74.0    80.2    46.2    86.2   603  
    2018                                      2.4    27.2     3.0     4.6    72.6    80.6   128.4   147.0        
 Average    123      58      33      42      16      20      10      10      60      68     118     111     665  
 Std Dev     53      12      27      15      10      13      12      11      34      17      72      26      82