According to the August 2005 issue of the Ford Muscle webmagazine, the following table contains the production numbers of the SHO sorted by year.

1989	15,519
1990	8,302
1991	8,916
1992	7,801
1993	21,550
1994	13,280
1995	9,560
1996	4,730
1997	9,764
1998	3,675
1999	3,368

Thanks to TCCA Member TrueBlue for submitting the following piece of trivia.

As of June 27, 2005, there are this many SHO's on the road:

1989	7,305
1990	4,557
1991	5,621
1992	5,463
1993	15,959
1994	10,599
1995	8,152

I guess that '93-'95 is ATXs and MTXs lumped together. Not a lot of those '90's left, but [if I recall correctly], there were only like 2,000 MTX's made in '95 which means that the rest are ATX and they will all die soon and that for some reason makes me happy. - TrueBlue