Item

Years

Average in decade

Highest

Lowest

(Highest-average)/ average (%)

(Average-lowest)/

average (%)

Variation index (%)

Precipitation in growing period (mm)

1954-1963

1964-1973

536.8

474.6

582.4

531.8

410.0

364.8

8.5

10.4

23.4

31.2

31.9

41.6

Yield

(kg/hm2)

1954-1963

1964-1973

2156.3

2265.9

3217

3056

1116

1149

49.0

34.9

48.3

49.2

97.3

84.1