Table:
text: Steve Grissom
Motorsports career results
NASCAR Nationwide Series results
Year_ Starts Wins Top_5 Top_10 Poles Avg_Start Avg_Finish Winnings Position_ Teams_
1993 28 2 11 18 0 21.5 10.3 $336,432 1st #31 Grissom Racing Enterprises
1994 11 0 1 1 0 27.5 26.6 $39,475 43rd #31 Grissom Racing Enterprises
1995 15 2 4 7 0 23.9 15.6 $110,105 26th #29 Diamond Ridge Motorsports
1996 8 1 3 4 0 25.9 14.1 $90,942 45th #29 Diamond Ridge Motorsports
1997 1 0 0 0 0 43.0 39.0 $4,425 114th #5 Labonte Motorsports
1998 2 0 0 0 1 22.0 23.0 $16,444 77th #12 Spencer Motor Ventures , #59 ST Motorsports

text: Steve Grissom
Motorsports career results
NASCAR Nationwide Series results
Year_ Starts Wins Top_5 Top_10 Poles Avg_Start Avg_Finish Winnings Position_ Teams_
1986 2 0 0 0 0 21.0 29.0 $535 110th #31 Grissom Racing Enterprises
1987 2 0 0 0 0 17.0 21.5 $975 49th #39 Grissom Racing Enterprises
1988 29 0 1 4 0 23.6 20.4 $45,391 13th #39 Grissom Racing Enterprises
1989 29 0 2 5 0 23.1 18.9 $71,822 12th #9/#19 Falcon Racing
1990 31 4 11 15 1 14.8 13.2 $166,842 3rd #31 Grissom Racing Enterprises
1991 31 1 7 13 1 20.5 15.7 $152,206 10th #31 Grissom Racing Enterprises
1992 31 1 2 7 1 19.7 16.7 $170,716 12th #31 Grissom Racing Enterprises

Question: What is the last year that Steve Grissom had at least one win under Steve Grissom?