These charts do not include Scriptural citations. All popes quoted Scripture in their documents; what is not consistent is how they handled those quotes. Some popes provided a citation at the end, and some simply included an in-text citation. As a result, comparing the exact citations will make it look as though certain popes or documents did not use any Scripture. To improve usefulness – that is, to more easily compare citations among papal documents – I have removed Scriptural citations from the final count. To see these charts with Scriptural citations included, click here.