| DMU = year | in FDH | in BCC | Results of the proposed approach in | Results of Cooper et al.’s approach in [6] |
| = 1981 | (0, 0) | (0, 0) | No congestion | No congestion | = 1982 | (0, 0) | (0, 0.72) | Congestion | No congestion | = 1983 | (0, 0) | (0, 0) | No congestion | No congestion | = 1984 | (0, 0) | (0, 0) | No congestion | No congestion | | (0, 0) | (0, 0) | No congestion | No congestion | = 1986 | (0, 0) | (0, 0) | No congestion | No congestion | = 1987 | (0, 0) | (0, 0) | No congestion | No congestion | = 1988 | (81.30, 0.67) | (65.39, 0) | Congestion | Congestion | = 1989 | (45.00, 0.52) | (45.00, 0) | Congestion | Congestion | = 1990 | (2.00, 0.74) | (43.16, 0) | Congestion | Congestion | = 1991 | (0, 0) | (0, 0) | No congestion | No congestion | = 1992 | (0, 0) | (30.72, 0) | No congestion | Congestion | = 1993 | (0, 0) | (1.79, 0) | No congestion | Congestion | = 1994 | (0, 0) | (0, 0) | No congestion | No congestion | = 1995 | (7.70, 4.33) | (0, 3.98) | Congestion | Congestion | = 1996 | (0, 0) | (0, 0) | No congestion | No congestion | = 1997 | (0, 0) | (0, 0) | No congestion | No congestion |
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