Table:
text: McLaren Grand Prix results
Works team entries
Works team entries
Year_ Chassis Engine Tyres Pts_
1983 MP4/1E TAG 1.5 V6 T M 0
1984 MP4/2 TAG 1.5 V6 T M 143.5
1985 MP4/2B TAG 1.5 V6 T G 90
1986 MP4/2C TAG 1.5 V6 T G 96
1987 MP4/3 TAG 1.5 V6 T G 76
1988 MP4/4 Honda RA168E 1.5 V6 T G 199
1989 MP4/5 Honda RA109E 3.5 V10 G 141
1990 MP4/5B Honda RA100E 3.5 V10 G 121
1991 MP4/6 Honda RA121E 3.5 V12 G 139
1992 MP4/6B MP4/7A Honda RA122E 3.5 V12 Honda RA122E/B 3.5 V12 G 99
1993 MP4/8 Ford HBE7 3.5 V8 G 84
1994 MP4/9 Peugeot A6 3.5 V10 G 42

Question: What year was the Honda ra168e 1.5 v6 t engine used in the McLaren Grand Prix results?