Ndagala
Mukeke
Sangala
Autres espèces
1990
83%
11%
6%
1991
89%
9%
1992
63%
19%
18%
1993
70%
27%
3,5%
1994
46%
20%
34%
1995
40%
45%
15%
1996
50%
32%
18%
1997
61%
29%
9%
1998
65%
28%
6%
1999
77%
16%
7%
2000
63%
18%
19%
2001
59%
16%
25%
2002
100%
2003
68%
31%
2004
2005
41%
59%
2006
85%
10%
5%
2007
70%
19%
11%
2008
85%
10%
4,8%
2009
26%
44%
21%
9%
2010
68%
4,8%
27%
2011
59%
6%
33%
2012
95%
2013
63%
11%
24%
2014
59%
6%
36%
2015
42%
9%
49%
2016
38%
59%