Cat.

Threshold

start date

end date

Max. duration

Max. M

SPI3

M = −1.0

11/01/2010

06/01/2011

7

−2.17

M = −1.5

06/01/1992

09/01/2000

5

−1.86

M = −2.0

05/01/1999

09/01/1999

4

−2.36

M = −1.0

11/01/1998

02/01/2000

15

−4.67

SPI6

M = −1.5

11/01/1998

02/01/2000

15

−4.67

M = −2.0, −2.5, −3.0, −3.5, −4.0

07/01/1999

02/01/2000

7

−4.67

SPI48

M = −1.0, −1.5, −2.0, −2.5

07/01/1999

02/01/2004

55

−2.72