How much are an ok CTR value and a good CTR value for a push campaign?

[tonegawa]

Hello,

I'd like to know, in a push campaign, how much are an ok CTR value and a good CTR value for the 3 basic elements:

1) an ok CTR for the banner and a good CTR for the banner
2) an ok CTR for the landing page and a good CTR for the landing page
3) an ok CTR for the offer and a good CTR for the offer (after the final landing page click)

I need to know these values in order to understand when I should keep an element because it has good stats and when I should