Station

1981-1990

1991-2000

2001-2010

2011-2019

N

DD

DS

DI

DP

N

DD

DS

DI

DP

N

DD

DS

DI

DP

N

DD

DS

DI

DP

MongCai

12

4

5

1.1

1.5

10

5

5.4

1.1

1.5

15

2

1.9

0.8

0.9

6

3

3.4

1.0

1.2

QuangHa

9

4

4.7

1.0

1.4

14

4

3.9

1.0

1.3

13

3

3.7

1.0

1.3

8

2

1.3

0.8

0.8

TienYen

9

4

4.8

1.1

1.3

15

2

2.4

1.0

1.1

11

4

4.9

1.1

1.6

9

3

3.2

0.8

0.9

CuaOng

9

5

6.8

1.2

1.6

17

2

2.4

0.9

1.1

12

4

3.9

1.0

1.3

6

2

1.7

0.9

1

HonGai

7

6

7

1.0

1.5

17

2

2.7

1.0

1.1

15

3

2.8

1.0

1.2

6

3

3.6

1.1

1.8

UongBi

14

3

3.2

1.0

1.2

10

4

4.3

1.0

1.4

16

3

2.9

1.0

1.2

8

3

2.7

0.9

1.1

PhuLien

12

4

3.5

0.9

1.2

13

3

3.6

1.1

1.2

13

3

3.5

1.0

1.2

8

3

3.3

1.0

1.2

HonDau

14

4

4.1

1.0

1.3

8

3

4.1

1.1

1.4

11

4

4.3

1.1

1.4

5

3

2.7

0.9

1.1

ThaiBinh

9

5

4.9

1.0

1.3

11

4

4.1

0.9

1.1

16

3

2.8

0.9

1

9

3

2.8

1.1

1.2

Chirps 1

12

4

3.9

0.9

1.1

14

3

3.3

1.0

1.3

15

3

3.3

0.9

1.2

9

2

1.9

0.8

0.9

Chirps 2

11

3

3

0.9

1.1

14

3

3.5

1.0

1.3

17

3

3.5

0.9

1.2

12

2

1.4

0.8

0.8

Chirps 3

12

3

2.9

1.0

1.1

13

3

3.1

1.0

1.2

15

4

4.1

0.9

1.3

11

2

2

0.8

0.9

Chirps 4

14

3

2.7

0.9

1.1

13

2

2.5

1.0

1.2

13

5

5.8

1.1

1.5

10

2

1.2

0.8

0.8

Chirps 5

12

2

2.5

0.9

1

13

3

3

0.9

1.3

16

4

4.5

1.0

1.4

11

2

1.3

0.8

0.9

Chirps 6

15

2

2.2

0.9

1.1

14

2

2

1.0

1.1

15

5

5.6

1.0

1.4

8

2

1.3

0.8

0.8

Chirps 7

17

2

2.1

0.9

1

13

2

2.4

1.0

1.3

15

5

5.1

1.0

1.3

8

2

1.7

0.8

0.9

Chirps 8

14

2

2.4

1.0

1.1

14

2

2.6

1.0

1.2

14

5

5.2

1.0

1.3

7

3

2.4

0.8

1

Chirps 9

15

2

2.7

1.0

1.1

11

3

3.2

1.1

1.3

16

4

4

1.0

1.3

10

2

1.5

0.7

0.8

Chirps 10

13

3

3.2

1.0

1.2

14

3

3.1

1.1

1.3

14

4

4.3

1.0

1.4

8

2

1.8

0.7

0.8

Average

12

3.4

3.8

1.0

1.2

13

2.9

3.2

1.0

1.2

14

3.7

4.0

1.0

1.3

8

2.4

2.2

0.9

1.0