Today’s Unitarian-Universalist trivia question asked the last year that the Unitarian Universalist Association posted a decline in membership (of individual members of congregations, that is). The answer is 1993, though the situation is a little more complicated. Robin Edgar correctly guessed 1993, good work.
The UUA last posted a decline in 1993, but the figures for 1993 and 1994 are odd, out of line with a very steady growth rate from 1983-2007. Therefore, there’s reason to suspect that something was off for the reporting of those years, especially because the figures as reported would signal an unusually high growth rate for 1995 that suddenly put it back on track for the same statistical curve that the UUA should’ve had going forward from 1992, an unlikely scenario. To use less math-speak: there may have been a mistake in the reporting for 1993, which would mean that the last actual year of decline in the UUA was 1982. UUA membership has increased about 20% over the intervening twenty-five years and now surpasses its size when the two denominations consolidated, but it is still not up to its highest level, achieved way back in 1968.