Year

Total sightings

Unidentified

1947

122

12

1948

156

7

1949

186

22

1950

210

27

1951

169

22

1952

1,501

303

1953

509

42

1954

487

46

1955

545

24

1956

670

14

1957

1,006

14

1958

627

10

1959

390

12

1960

557

14

1961

591

13

1962

474

15

1963

399

15

1964

562

19

1965

886

16

Totals

10,047

646