IOP

Residence

I/O ratio

1a

E

0.99^a

2a

E

0.86^a

3a

E

0.42^a

4a

E

0.87

7a

E

1.06^a

8a

E

0.87^a

1a

G

0.69

3a

G

2.97^b

4a

J

1.96^c

3a

M

0.86

4a

M

0.69

7a

M

0.45

8a

M

2.25^b

Average

0.78^d

Standard deviation

0.21