Table: gb railfreight
[['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']]
Statement: Diesel Locomotive were Introduced 3 time
Statement: Shunter was first Introduced 1953 and for the last time 1959
Statement: Diesel Locomotive had a total Fleet of 49 with 3 different year of introduction
Statement: the smallest total Fleet sized Introduced was Shunter with 4
Statement: the total Fleet Size Introduced from 1953 to 2011 was 80