|
Year
|
Predation rate
|
|
1974
|
0.011
|
|
1975
|
0.019
|
|
1976
|
0.025
|
|
1977
|
0.026
|
|
1978
|
0.019
|
|
1979
|
0.020
|
|
1980
|
0.018
|
|
1981
|
0.013
|
|
1982
|
0.012
|
|
1983
|
0.012
|
|
1984
|
0.009
|
|
1985
|
0.008
|
|
1986
|
0.011
|
|
1987
|
0.009
|
|
1988
|
0.008
|
|
1989
|
0.011
|
|
1990
|
0.009
|
|
1991
|
0.008
|
|
1992
|
0.011
|
|
1993
|
0.006
|
|
1994
|
0.007
|
|
1995
|
0.007
|
|
1996
|
0.032
|
|
1997
|
0.026
|
|
1998
|
0.014
|
|
1999
|
0.026
|
|
2000
|
0.016
|
|
2001
|
0.019
|
|
2002
|
0.017
|
|
2003
|
0.015
|
|
2004
|
0.032
|
|
2005
|
0.038
|
|
2006
|
0.033
|
|
2007
|
0.036
|
|
2008
|
0.023
|