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15-22    Average Static Load of Freight Cars
(ton/car)
Year
Total
Coal
Petroleum
Steel and
Mineral Building
Grain
Iron
Materials
1978
46.9
50.6
46.3
47.5
49.9
50.3
1980
48.0
52.5
46.3
49.0
52.6
54.2
1985
51.6
55.7
46.2
51.9
55.3
54.6
1990
55.0
58.5
47.0
55.0
57.9
58.3
            
                  
                
                
                
                
                
1991
55.2
58.7
46.7
55.6
58.0
58.5
1992
55.8
59.1
47.1
56.4
58.3
58.9
1993
56.1
59.3
47.4
57.1
58.5
59.1
1994
56.6
59.6
47.6
57.8
59.0
59.3
1995
56.8
59.9
47.6
58.2
59.2
59.4
            
                  
                
                
                
                
                
1996
57.1
60.0
47.5
58.5
59.4
59.6
1997
57.3
60.2
48.0
58.6
59.4
59.6
1998
57.6
60.8
48.6
58.9
59.7
59.7
1999
57.7
61.1
49.2
59.1
59.9
59.6
2000
57.9
61.1
49.8
58.9
59.7
59.7
2001
58.1
61.1
50.2
58.8
59.8
59.6
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