ANOVA test between decades

Hi,

I want to run ANOVA test between decade means

There are 9 decades, from years 1990 to 2000 (i.e. 1900 - 1910 etc) and 9 mean values for each decade

I want to test for significance between these decades

I want to plot results (and p-values) on a histogram

How can I do this (I am a beginner, so nothing too complicated)?

Thank you.