The Ashes (Aus/Eng) in England, 1989 [Series] 18.25
New Zealand in England, 1990 [Series] 71.40
India in England, 1990 [Series] 63.00
The Ashes (Aus/Eng) in Australia, 1990/91 [Series] 31.00
The Wisden Trophy (Eng/WI) in England, 1991 [Series] 08.77
Pakistan in England, 1992 [Series] 29.00
England in India, 1992/93 [Series] 24.00
England in Sri Lanka, 1992/93 [Series] 07.50
The Ashes (Aus/Eng) in England, 1993 [Series] 46.08
The Wisden Trophy (Eng/WI) in West Indies, 1993/94 [Series] 56.66
New Zealand in England, 1994 [Series] 68.25
South Africa in England, 1994 [Series] 34.50
The Ashes (Aus/Eng) in Australia, 1994/95 [Series] 40.70
The Wisden Trophy (Eng/WI) in England, 1995 [Series] 40.66
England in South Africa, 1995/96 [Series] 55.71
India in England, 1996 [Series] 65.75
Pakistan in England, 1996 [Series] 32.40
England in Zimbabwe, 1996/97 [Series] 08.50
England in New Zealand, 1996/97 [Series] 108.33
The Ashes (Aus/Eng) in England, 1997 [Series] 23.36
The Wisden Trophy (Eng/WI) in West Indies, 1997/98 [Series] 18.09
South Africa in England, 1998 [Series] 54.77
The Ashes (Aus/Eng) in Australia, 1998/99 [Series] 13.75
New Zealand in England, 1999 [Series] 33.25
England in South Africa, 1999/00 [Series] 28.12
Zimbabwe in England, 2000 [Series] 75.00
The Wisden Trophy (Eng/WI) in England, 2000 [Series] 34.55
England in Pakistan, 2000/01 [Series] 68.20
England in Sri Lanka, 2000/01 [Series] 21.50
Pakistan in England, 2001 [Series] 32.66
The Ashes (Aus/Eng) in England, 2001 [Series] 22.10
plenty of inconsistencies throughout his career though i am sure you will have excuses for each and everyone of them...and i am not even considering series where he averaged in the 40s...