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. 2015 Aug 19;6:33. doi: 10.1186/s13326-015-0032-2

Table 1.

General characteristics of the networks

Nnode Nlink Average degree Average path length Network diameter
1990 342 990 5.79 3.05 7
1991 634 2,756 8.69 2.69 5
1992 553 2,275 8.23 2.58 5
1993 517 2,263 8.75 2.45 5
1994 549 2,487 9.06 2.46 5
1995 637 3,080 9.67 2.54 6
1996 628 3,028 9.64 2.54 5
1997 660 3,270 9.91 2.51 5
1998 793 3,989 10.06 2.54 5
1999 1,047 5,245 10.21 2.67 5
2000 1,065 5,708 10.72 2.59 5
2001 906 4,904 10.83 2.53 5
2002 987 5,289 10.72 2.58 5
2003 1,430 8,197 11.46 2,52 5
2004 1,160 6,491 11.19 2.62 5
2005 1,315 7,290 11.08 2.66 6
2006 1,978 12,128 12.26 2.66 5
2007 3,103 20,214 13.03 2.59 5
2008 3,045 20,196 13.27 2.58 6
2009 3,351 22,054 13.16 2.57 5
2010 2,639 18,041 13.67 2.62 5
2011 2,142 13,533 12.64 2.69 5
2012 1,943 12,292 12.65 2.72 5
2013 826 4,886 11.83 2.72 5
Female 4,947 49,616 20.14 2.35 5
Male 4,519 51,578 22.83 2.35 5
Overall 5,938 53,742 18.10 2.48 5