Cohort analysis - Retention rate visualization by Sergey Bryl'

Customers Retention Rate Bubble chart.
There are all of the customer cohorts on the x-axis. Light bubbles are the numbers of customers at the beginning of the lifetime period and dark bubbles are alive customers afterwards. The size of the bubbles depends on the number of customers in the cohort and the position of the bubbles depends on the Retention Rate value. In addition, there are smooth trends of Retention Rate by lifetime periods.