Until March 1990, "The Watchtower" was available for a small charge that varied over time and in different countries. For example, in the United States, the suggested donation per issue was $0.05 in 1950, gradually increasing to $0.25 in 1989. On January 17, 1990, the Supreme Court of the United States ruled against Jimmy Swaggart that sales of religious literature were subject to taxation, which introduced ambiguity into the formerly tax-free practice of suggesting a specific amount in exchange for the magazines. The Watch Tower Society supported Swaggart in the case, arguing that the perceived sale of religious literature should be exempt from taxation.