16-4  Length of Transportation Routes
                (10 000 km)
          Length of Length of   Length of
  Length of National Length of Expressway Navigable Civil International Petroleum
Year Railways in  Electrified Highways   Inland Aviation Routes and Gas
  Operation Railways     Waterways Routes   Pipelines
                 
1978 5.17 0.10 89.02   13.60 14.89 5.53 0.83
1980 5.33 0.17 88.33   10.85 19.53 8.12 0.87
                 
1981 5.39 0.17 89.75   10.87 21.83 8.28 0.97
1982 5.29 0.18 90.70   10.86 23.27 9.99 1.04
1983 5.41 0.23 91.51   10.89 22.91 9.99 1.08
1984 5.45 0.30 92.67   10.93 26.02 10.74 1.10
1985 5.50 0.42 94.24   10.91 27.72 10.60 1.17
                 
1986 5.57 0.44 96.28   10.94 32.43 10.76 1.30
1987 5.58 0.46 98.22   10.98 38.91 14.89 1.38
1988 5.61 0.57 99.96 0.01 10.94 37.38 12.83 1.43
1989 5.69 0.64 101.43 0.03 10.90 47.19 16.64 1.51
1990 5.78 0.69 102.83 0.05 10.92 50.68 16.64 1.59
                 
1991 5.78 0.78 104.11 0.06 10.97 55.91 17.74 1.62
1992 5.81 0.84 105.67 0.07 10.97 83.66 30.30 1.59
1993 5.86 0.89 108.35 0.11 11.02 96.08 27.87 1.64
1994 5.90 0.90 111.78 0.16 10.27 104.56 35.19 1.68
1995 5.97 0.97 115.70 0.21 11.06 112.90 34.82 1.72
                 
1996 6.49 1.01 118.58 0.34 11.08 116.65 38.63 1.93
1997 6.60 1.20 122.64 0.48 10.98 142.50 50.44 2.04
1998 6.64 1.30 127.85 0.87 11.03 150.58 50.44 2.31
1999 6.74 1.40 135.17 1.16 11.65 152.22 52.33 2.49
2000 6.87 1.49 140.27 1.63 11.93 150.29 50.84 2.47
                 
2001 7.01 1.69 169.80 1.94 12.15 155.36 51.69 2.76
2002 7.19 1.74 176.52 2.51 12.16 163.77 57.45 2.98
2003 7.30 1.81 180.98 2.97 12.40 174.95 71.53 3.26
2004 7.44 1.86 187.07 3.43 12.33 204.94 89.42 3.82