I never thought you could quantify missionary zeal, but apparently you can:

According to this news story, Hodges Ministries has 1.6 million pounds worth of Christian literature–tracts, Bibles, pamphlets, psalms etc–waiting to be exported. “For instance, a 40-foot shipping container was to go out this week to India, where Christians number 2.3 percent of the population…. In 2005, the mostly volunteer work force sent nearly 1.2 million pounds of Bibles and other Christian materials to dozens of countries.”