Distinct Nationalities per Year

Number of different climbing nationalities present on Himalayan expeditions each year, and the subset of those nationalities that achieved at least one summit. A handful of countries in the 1950s, well over fifty by the 2010s.

04080120160200192019401960198020002020Nationalities per yearDistinct nationalities presentDistinct nationalities summiting
Year Nationalities Summit Nationalities Total Summits
1905 4 0 0
1907 1 0 0
1909 1 1 1
1910 1 1 1
1920 1 0 0
1921 4 0 0
1922 3 0 0
1924 2 0 0
1925 1 0 0
1929 5 0 0
1930 5 5 13
1931 3 0 0
1933 3 0 0
1934 2 0 0
1935 5 2 3
1936 4 2 5
1937 5 0 0
1938 3 0 0
1939 4 2 9
1940 1 0 0
1947 4 0 0
1949 5 4 18
1950 5 1 2
1951 5 0 0
1952 8 4 13
1953 7 5 43
1954 12 6 43
1955 12 8 53
1956 6 5 17
1957 3 1 4
1958 10 4 6
1959 9 4 13
1960 13 10 48
1961 9 6 24
1962 11 8 78
1963 11 7 43
1964 13 9 57
1965 8 6 36
1966 5 0 0
1967 4 2 4
1968 2 2 3
1969 11 5 23
1970 10 7 66
1971 16 7 29
1972 14 7 54
1973 13 7 47
1974 17 10 78
1975 15 10 79
1976 17 11 68
1977 16 11 33
1978 17 12 154
1979 20 13 193
1980 19 15 167
1981 24 19 193
1982 23 21 292
1983 23 19 192
1984 23 18 253
1985 30 22 250
1986 28 17 189
1987 33 18 175
1988 33 24 247
1989 35 26 267
1990 32 30 312
1991 38 30 307
1992 44 31 312
1993 41 31 394
1994 45 30 375
1995 48 37 455
1996 51 39 494
1997 54 38 423
1998 54 43 574
1999 51 41 485
2000 49 34 564
2001 54 39 544
2002 52 40 663
2003 59 48 846
2004 56 47 1024
2005 62 53 860
2006 64 53 1249
2007 70 59 1161
2008 75 57 1103
2009 77 61 1278
2010 81 60 1062
2011 92 73 1388
2012 80 63 1175
2013 89 64 1317
2014 78 52 808
2015 87 38 371
2016 75 61 1362
2017 79 62 1657
2018 84 66 1864
2019 103 81 2150
2020 28 19 193
2021 106 70 1048
2022 100 85 1936
2023 113 102 2356
2024 105 88 2525
2025 89 69 1279