16/5/90: London, bomb, IRA.
1/6/90: Lichfield, shooting, IRA.
20/7/90: London, bomb, IRA.
30/7/90: Sussex, car bomb kills MP, IRA.
7/2/91: London, mortar attack on 10 Downing, IRA.
18/2/91: London, bomb, IRA.
15/11/91: London, bomb, IRA.
28/2/92: London, bomb, IRA.
10/4/92: London, bomb, IRA.
7/6/92: Yorkshire, shooting, IRA.
25/8/92: Shropshire, fire bomb, IRA.
12/10/92: London, bombing, IRA.
16/11/92: London, bombing, IRA.
3/12/92: Manchester, bombing, IRA.
20/3/93: Warrington, bombing, IRA....

...1/5/2000: London, bombing, IRA.
20/9/00: London, RPG attack on MI6, IRA.
4/3/01: London, bomb, IRA.
16/4/01: Hendon, bomb, IRA.
6/5/01: London, bomb, IRA.
3/8/01: London, bomb, IRA.

From 1970 to 9/11 there were 65 terrorist attacks in the UK, almost all by the IRA. Since 9/11 there have been 9 terrorist attacks in the UK, six of them by Islamist extremists.

https://en.wikipedia.org/wiki/List_of_terrorist_incidents_in_Great_Britain