Table:
text: GB Railfreight
Fleet details
Fleet details
Class_ Type_ Introduced Fleet_Size Numbers
Class 08 Shunter 1953 2 08925, 08934
Class 09 Shunter 1959 2 09002, 09009
Class 20 Diesel locomotive 1957-1968 9 20096, 107, 142, 189, 227 311, 314, 901, 905
Class 66 Diesel locomotive 2002 48 66701-733, 735-751
Class 73 Electro-diesel locomotive 1966 10 73119, 141, 204-209, 212-213
Class 92 Electric locomotive 1993 7 92020, 021, 032, 040, 044-046
Vanguard 0-6-0DH Diesel locomotive 2011 2 DH50-1, DH50-2

Question: What is the fleet size of GB Railfreight's Vanguard 0-6-0dh class?

Question: What is the launch year of the electric diesel locomotive for GB Railfreight?

Question: What is the average fleet size of GB Railfreight's shunting locomotive type introduced in 1959?

Question: What is the smallest fleet size with a shunter type introduced for GB Railfreight in 1953?