excel - Insert a column chart that shows the number of values found in a range of rows -

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assume have data follows:

id; author; customer ticket 1; john; alice ticket 2; john; bob ticket 3; ken; charles ticket 4; ken; darren

(i use ; symbolize end of cell/column)

i want produce column chart has 1 column per unique value author , height of column number of times value occurs. in example, have 2 columns (john , ken) , each 2 in size.

how do that?

i think want achieved pivottable author rows , count of author sigma values select data , insert column chart:

so23219612 example


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