Table:
text: List of Drum Corps International World Championship finalists
List of Drum Corps International World Championship finalists
List of Drum Corps International World Championship finalists
Corps_Name Number_of_Finals_Appearances Year_of_First_Appearance Year_of_Most_Recent_Appearance All_Years_of_Finals_Appearances
Freelancers 10 1976 1992 1976-77,1981–85,1989,1991–92
Star of Indiana 9 1985 1993 1985-93
Colts 8 1993 2007 1993-96,1998–99,2001,2007
Troopers 9 1972 2009 1972-75,1979,1981,1985–86,2009
Velvet Knights 8 1984 1992 1984-90,1992
Suncoast Sound 7 1983 1989 1983-89
Kilties 6 1972 1978 1972-75,1977–78
The Magic 6 1994 2003 1994–1997,2002–03
Sky Ryders 6 1982 1991 1982-83,1986–88,1991
Guardsmen 4 1976 1980 1976, 1978–80
Anaheim Kingsmen 3 1972 1974 1972-74
Muchachos 3 1972 1974 1972-74
North Star 3 1978 1980 1978-80
Argonne Rebels 2 1972 1973 1972-73
Oakland Crusaders 2 1975 1976 1975-76
Seneca Optimists 2 1976 1977 1976-77
Bleu Raeders 1 1972 1972 1972
Black Knights 1 1973 1973 1973

text: List of Drum Corps International World Championship finalists
List of Drum Corps International World Championship finalists
List of Drum Corps International World Championship finalists
Corps_Name Number_of_Finals_Appearances Year_of_First_Appearance Year_of_Most_Recent_Appearance All_Years_of_Finals_Appearances
De La Salle Oaklands 1 1974 1974 1974
Des Plaines Vangaurd 1 1972 1972 1972
Dutch Boy 1 1990 1990 1990
Purple Lancers 1 1974 1974 1974
Royal Crusaders 1 1975 1975 1975
Stockton Commodores 1 1973 1973 1973
Cascades 1 2002 2002 2002

Question: In what year did the Black Knights first appear having less than 1 finals appearance among the List of Drum Corps International World Championship finalists?