Result (MK and Sen’s slope)

SPI 1

SPI 3

SPI 6

SPI 12

Var (S)

2396

2377

2348

2291

Z (MK)

6.056

8.451

10.690

12.210

p-value

6.994E−10

0.000

0.000

0.000

Sen’s slope

0.0028

0.000138

1.74E−04

0.00582