SP72
July 1, 1990
SP71
June 1, 1990
SP68
SP66
May 1, 1990
SP59
SP65
April 1, 1990
SP64
SP53
March 1, 1990
SP57
SP56
February 1, 1990
SP50
SP49
SP55
January 1, 1990
SP58
SP52
December 1, 1989
SP42
SP44
November 1, 1989
SP51
SP47
October 1, 1989
SP46
SP43
September 1, 1989
SP40
August 1, 1989
SP38
SP41
SP39
July 1, 1989
SP34
June 15, 1989
SP36
June 1, 1989
SP37
SP33
May 1, 1989
SP35
SP32
April 1, 1989
SP27
March 1, 1989
SP31
SP30
SP24
SP29
February 1, 1989
