16-20

1975

4.50

2.71

5.71

38.77

34.90

21.57

15.67

13.42

13.29

14.72

16.98

16.67

1976

4.50

2.56

6.14

40.95

35.01

21.27

15.27

13.71

13.58

14.92

17.27

17.05

1977

4.68

2.83

6.44

42.86

38.73

22.27

15.61

13.90

13.55

14.03

16.13

17.81

1978

4.61

2.66

6.60

44.45

40.75

24.26

16.72

14.07

13.44

14.79

16.36

18.70

1979

4.35

2.84

6.13

44.36

40.06

24.96

17.11

14.03

13.24

13.59

15.51

18.67

1980

4.24

2.67

6.00

42.94

39.86

24.82

16.85

14.51

12.83

12.96

15.27

18.45

1981

3.75

2.43

5.24

38.56

37.41

24.22

16.63

13.81

12.68

13.16

14.94

17.62

1982

3.67

2.22

4.85

34.51

32.75

20.45

14.30

11.84

11.24

11.85

14.89

15.39

1983

3.55

2.33

4.60

33.18

30.97

19.86

13.87

11.79

10.92

11.92

15.48

14.90

1984

3.13

2.33

5.21

34.94

32.89

20.26

13.91

11.86

11.16

12.98

16.18

15.39

1985

3.18

2.36

5.52

33.72

32.75

19.50

13.87

11.88

11.33

12.63

16.73

15.15

1986

3.42

2.30

6.07

38.16

33.72

21.04

13.82

11.50

11.38

13.46

17.71

15.92

1987

3.78

2.60

6.00

36.65

32.83

21.05

14.15

12.10

11.93

13.58

18.22

15.92

1988

3.82

2.64

5.74

37.95

33.63

20.50

14.20

12.33

12.15

14.12

19.26

16.02

1989

3.93

2.92

5.48

34.71

30.85

20.10

13.89

12.46

12.18

14.24

19.41

15.43

1990

3.30

2.50

5.25

34.14

30.62

19.81

13.34

12.20

11.91

13.36

18.48

14.89

1991

3.13

2.39

4.86

31.76

28.83

17.79

12.29

11.12

10.75

13.22

19.14

13.78

1992

2.99

2.41

4.75

28.37

25.96

16.54

11.71

10.62

10.53

13.27

18.81

12.89

1993

3.14

2.35

4.67

28.99

26.70

16.47

11.86

10.52

10.86

12.73

20.78

13.02

1994

3.46

2.35

5.07

30.46

26.27

16.07

11.79

11.15

10.71

13.99

20.71

13.18

1995

3.17

2.46

5.15

29.58

27.30

17.03

12.49

11.01

11.42

13.67

20.87

13.43

1996

3.40

2.34

5.07

29.43

27.31

16.78

12.60

11.14

11.58

14.20

20.84

13.46

1997

3.16

2.42

4.96

28.38

25.53

16.49

12.23

11.57

11.96

14.46

22.09

13.34

1998

3.03

2.60

4.60

27.61

25.06

15.81

12.60

11.44

11.53

14.31

21.28

13.09

1999

2.94

2.54

4.49

28.10

25.56

16.13

12.62

11.48

11.52

14.17

20.70

13.16

2000

2.82

2.38

4.28

27.85

25.20

15.54

12.82

11.49

11.38

12.89

19.48

12.88

2001

2.67

2.26

3.79

28.01

24.87

15.59

12.93

11.40

10.92

12.79

19.24

12.78

2002

2.42

2.12

4.10

29.23

25.69

15.60

13.00

11.84

11.15

12.67

18.61

12.98

2003

2.44

2.11

4.16

27.54

24.51

15.21

12.93

11.96

11.21

12.47

18.77

12.77

1988

417

444

734

3,283

2,666

1,800

1,308

1,030

876

710

656

1,319

1989

370

469

727

3,210

2,467

1,672

1,280

   985

801

713

618

1,251

1990

329

430

674

3,110

2,494

1,672

1,227

   989

844

750

514

1,220

1991

384

470

709

2,921

2,317

1,574

1,144

   977

801

727

521

1,162

1992

323

438

685

2,988

2,253

1,573

1,101

   971

783

722

586

1,140

1993

367

471

657

2,885

2,307

1,606

1,195

   956

821

707

592

1,155

1994

411

468

706

2,958

2,369

1,667

1,225

   987

857

756

598

1,192

1995

418

483

742

3,193

2,456

1,722

1,291

1,132

926

755

624

1,257

1996

418

533

731

3,132

2,432

1,766

1,295

1,085

904

788

654

1,256

1997

400

461

684

2,981

2,401

1,689

1,257

1,012

815

761

641

1,196

1998

403

440

677

2,780

2,123

1,586

1,158

1,029

873

696

588

1,133

1999

383

477

662

2,828

2,169

1,596

1,135

1,028

801

759

610

1,136

2000

349

404

548

2,699

2,088

1,450

1,160

   947

829

723

665

1,083

2001

309

371

513

2,473

2,027

1,384

1,094

   935

748

668

575

1,018

2002

301

378

517

2,403

1,891

1,306

1,031

   872

765

617

543

   972

2003

300

372

473

2,288

1,834

1,315

1,017

   874

731

609

517

   951