"year","total_abundance"
1977,487
1978,992
1979,658
1980,1375
1981,1417
1982,1964
1983,1652
1984,951
1985,1416
1986,922
1987,1668
1988,1457
1989,1562
1990,1296
1991,1332
1992,1008
1993,714
1994,615
1995,1180
1996,1689
1997,2492
1998,1590
1999,1108
2000,1509
2001,1540
2002,2192