Which of the following statements regarding unions is NOT true? September 22, 2022 by 8i9x6 Union membership has fallen from approximately 20 percent to 11 percent since 1983. Unions peaked in the 1950s and 1960s. Since 1997,there has been a consistent 2 percent annual decrease in certification elections decided in favor of unionization. Since 1997,the number of union certification elections for firms has declined. See Answer Since 1997,there has been a consistent 2 percent annual decrease in certification elections decided in favor of unionization.