Total Ducks Per Mile of Shoreline 
FIGURE 1. POPULATION TRENDS ON TEN CENSUS AREAS 
25 
20 
15 
10 
1939 
(51. 1) 
(60.8 miles of shoreline) 
- vrs Lea) 
- Rinaneck 2 __ ——, 
= Py Dusk anweoo* — = ; 
1940 1941 1947 1948 1949 1950 -1951 1952 
(56. 5) (37. 2) (38. 4) (51.1) (34. 4) (29.0) (46.6) (36.0) 
Years and Ducks per Mile of Shoreline 
