INB de Tonga: datos y evolución
Mostrar tabla de datos
| 1970 | 17,4 M | 1989 | 157 M | 2008 | 343 M |
| 1971 | 19,7 M | 1990 | 166 M | 2009 | 330 M |
| 1972 | 23,6 M | 1991 | 199 M | 2010 | 383 M |
| 1973 | 35 M | 1992 | 195 M | 2011 | 452 M |
| 1974 | 46,9 M | 1993 | 192 M | 2012 | 434 M |
| 1975 | 43,4 M | 1994 | 205 M | 2013 | 453 M |
| 1976 | 40 M | 1995 | 213 M | 2014 | 436 M |
| 1977 | 45,2 M | 1996 | 227 M | 2015 | 408 M |
| 1978 | 55,5 M | 1997 | 220 M | 2016 | 428 M |
| 1979 | 60,3 M | 1998 | 199 M | 2017 | 479 M |
| 1980 | 82,3 M | 1999 | 204 M | 2018 | 507 M |
| 1981 | 87 M | 2000 | 193 M | 2019 | 535 M |
| 1982 | 91,1 M | 2001 | 168 M | 2020 | 545 M |
| 1983 | 89,6 M | 2002 | 185 M | 2021 | 549 M |
| 1984 | 88,3 M | 2003 | 208 M | 2022 | 568 M |
| 1985 | 76,4 M | 2004 | 242 M | 2023 | 636 M |
| 1986 | 92,4 M | 2005 | 261 M | 2024 | 694 M |
| 1987 | 110 M | 2006 | 295 M | ||
| 1988 | 155 M | 2007 | 308 M |
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