page                days since publishing   pageviews
example.com/a       1                       5000
example.com/a       2                       10000
example.com/a       3                       7500
example.com/b       1                       10000
example.com/b       2                       20000
example.com/b       3                       15000

page                days since publishing   pageviews
example.com/a       1                       0
example.com/a       2                       1
example.com/a       3                       0.5
example.com/b       1                       0
example.com/b       2                       1
example.com/b       3                       0.5