Expressways of China
History
Table:
Length of National Trunk Highway System by year[7][8]

Year[note 2]

Length

1988
0 km (0 mi)

1989
147 km (91 mi)

1990
271 km (168 mi)

1991
522 km (324 mi)

1992
574 km (357 mi)

1993
652 km (405 mi)

1994
1,145 km (711 mi)

1995
1,603 km (996 mi)

1996
2,141 km (1,330 mi)

1997
3,422 km (2,126 mi)

1998
4,771 km (2,965 mi)

1999
8,733 km (5,426 mi)

2000
11,605 km (7,211 mi)

2001
16,314 km (10,137 mi)

2002
19,453 km (12,088 mi)

2003
25,200 km (15,700 mi)

2004
29,800 km (18,500 mi)

2005
34,300 km (21,300 mi)

2006
41,005 km (25,479 mi)

2007
45,339 km (28,172 mi)

2008
53,913 km (33,500 mi)

2009
60,436 km (37,553 mi)

2010
65,055 km (40,423 mi)

2011
74,113 km (46,052 mi)

2012
84,946 km (52,783 mi)

2013
96,200 km (59,800 mi)

2014
104,438 km (64,895 mi)

2015
111,936 km (69,554 mi)

2016
123,523 km (76,754 mi)

2017
130,973 km (81,383 mi)

2018
136,500 km (84,800 mi)

2019
142,500 km (88,500 mi)

From the data table for the 'History' part of 'Expressways of China', produce a single-sentence summary focused on the highlighted cells and return it as JSON: {"answer": "YOUR ANSWER"}.