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. 2015 Jan 22;6:7–21. doi: 10.2147/OAJSM.S76490

Table 4.

The number of women, men, and the men-to-women ratio for each distance across calendar years

Year 50 miles
100 miles
200 miles
1,000 miles
3,100 miles
W M M/W W M M/W W M M/W W M M/W W M M/W
1971 16
1972 4
1973 28
1974 32 1
1975 27
1976 34 1
1977 4 36 9 3
1978 70 1 29 29
1979 6 64 11 6 112 19
1980 2 58 29 15 129 9
1981 13 159 12 18 128 7
1982 28 379 14 17 159 9
1983 25 366 15 35 175 5
1984 25 382 15 31 227 7
1985 33 408 12 25 161 6
1986 48 378 8 34 279 8 5
1987 42 317 8 23 238 10
1988 58 372 6 40 345 9 1 5 5
1989 61 458 8 62 370 6 3 6 2
1990 75 444 6 65 359 6
1991 67 473 7 62 289 5
1992 79 534 7 35 278 8
1993 67 482 7 68 351 5 4 4 1
1994 79 591 7 56 341 6 4 2 1
1995 143 814 6 66 355 5 1
1996 178 964 5 133 837 6 2 9 5
1997 289 1,408 5 145 1,040 7 3 3 1
1998 319 1,621 5 242 1,180 5 1 6 6
1999 354 1,809 5 220 1,097 5 1 1 1
2000 342 1,642 5 241 1,247 5 3 2 1
2001 419 1,692 4 284 1,245 4 2 2 1
2002 478 1,777 4 260 1,188 5 1 1 1
2003 581 1,985 3 322 1,398 4 3 1 4
2004 523 1,859 4 361 1,474 4 8
2005 700 2,321 3 360 1,557 4 1 1 1
2006 964 3,051 3 401 1,776 4 6 14
2007 1,166 3,599 3 480 1,980 4 1 1 1
2008 1,349 4,108 3 469 1,991 4 11
2009 1,915 5,853 3 660 2,613 4 11
2010 2,452 7,537 3 809 3,331 4 2 3 5 2 6
2011 2,859 8,964 3 926 3,760 4 1 8
2012 3,524 10,275 3 1,193 4,857 4 3 19 6 1 6
Mean 7 7 6 2 1

Abbreviations: M, men; M/W, men-to-women ratio; W, women.