Length of Transportation Routes
(10 000 km)
Year		Length of Railways in Operation				Length of Highways		Length of Navigable Inland Waterways		Length of Civil Aviation Routes				Length of Petroleum and Gas Pipelines
				Electrified Railways								International Routes
1952		2.29				12.67		9.50		1.31		0.51
1957		2.67				25.46		14.41		2.64		0.43		...
1962		3.46		0.01		46.35		16.19		3.53		0.44		0.02
1965		3.64		0.01		51.45		15.77		3.94		0.45		0.04
1970		4.10		0.03		63.67		14.84		4.06		0.44		0.12
1975		4.60		0.07		78.36		13.56		8.42		3.71		0.53
1978		4.86		0.10		89.02		13.60		14.89		5.53		0.83
1980		4.99		0.17		88.33		10.85		19.53		8.12		0.87
1985		5.21		0.42		94.24		10.91		27.72		10.60		1.17
1986		5.25		0.44		96.28		10.94		32.43		10.76		1.30
1987		5.26		0.46		98.22		10.98		38.91		14.89		1.38
1988		5.28		0.57		99.96		10.94		37.38		12.83		1.43
1989		5.32		0.64		101.43		10.90		47.19		16.64		1.51
1990		5.34		0.69		102.83		10.92		50.68		16.64		1.59
1991		5.34		0.78		104.11		10.97		55.91		17.74		1.62
1992		5.36		0.84		105.67		10.97		83.66		30.30		1.59
1993		5.38		0.89		108.35		11.02		96.08		27.87		1.64
1994		5.40		0.90		111.78		10.27		104.56		35.19		1.68
1995		5.46		0.97		115.70		11.06		112.90		34.82		1.72
1996		5.67		1.01		118.58		11.08		116.65		38.63		1.93
1997		5.76		1.20		122.64		10.98		142.50		50.44		2.04
1998		5.76		1.30		127.85		11.03		150.58		50.44		2.31
1999		5.79		1.40		135.17		11.65		152.22		52.33		2.49
2000		6.87		1.49		140.27		11.93		150.29		50.84		2.47
2001		7.01				169.80		12.15		155.36		51.69		2.76