sorting data in groups at pivot table

Hi,

I have a table of gender, frequency and income like this

Gender	Frequency	Income
Man	4	30
Man	4	58
Man	6	48
Woman	6	58
Woman	5	53
Man	3	49
Man	5	48
Man	6	52
Woman	4	47
Man	4	63

where the frequency is the number of times they go to fastfood shops per week. There are 150 data in the table. I need to summarize the data in a pivot table according to gender and income group. I thought of something like this

Income Group	Man	Woman
below 40	            3.2	3.1
40-60	            4.1	4
over 60	            3.5	3.2

I don't know much about pivot table please help.