Data and Research on Menstruation---Should you camp? Read the Data.

Year	Total Visitors	Backcountry Use Nightsa	Total Injuries
			Grizzly	Black	Unknown
2002	2,983051	43,590	2 total: 1 backcountry 1 developed area		1 (backcountry)
2001	2,752,346	43,302	0	0	0
2000	2,838,233	39,469	2 (backcountry)	1 (backcountry)	0
1999	3,131,381	43,540	2 (backcountry)	0	0
1998	3,120,830	45,612	1 (backcountry)	0	0
1997	2,889,513	44,836	1 (backcountry)	1 (backcountry)	0
1996	3,012,171	45,743	0	0	0
1995	3,125,285	45,774	0	0	0
1994	3,046,645	45,460	4 (backcountry)	0	0
1993	2,912,193	45,135	0	0	0
1992	3,186,190	42,124	1 (backcountry)	0	0
1991	2,957,856	41,476	0	0	0
1990	2,857,096	37,318	0	0	0
1989	2,680,376	32,747	1 (backcountry)	0	0
1988	2,219,128	25,188	0	0	0
1987	2,618,249	32,906	0	0	0
1986	2,405,063	31,414	2 (backcountry, includes one fatality)	0	1 (backcountry)
1985	2,262,455	32,532	0	0	0
1984	2,262,969	34,936	5 (4 backcountry, including 1 fatality; 1 developed area)	0	0
1983	2,405,653	43,738	1 (backcountry)	1 (management handling injury)	0
1982	2,404,862	49,400	0	0	0
1981	2,544,242	55,060	2 (1 backcountry and 1 management handling injury)	1 (developed area)	1 (backcountry)
1980	2,009,581	54,874	1 (backcountry)	0	0
1979	1,891,927	51,182	2 (backcountry)	0	1 (backcountry)
1978	2,623,141	52,795	0	1 (backcountry)	1 (backcountry)
1977	2,487,084	55,331	1 (backcountry)	2 (1 backcountry and 1 developed area)	0
1976	2,525,174	50,580	4 (2 backcountry and 2 developed area injuries)	4 (roadside)	0
1975	2,246,132	44,374	2 (backcountry)	1 (roadside)	0

Includes overnight backcountry users only, backcountry day use records are not collected.