Table:
variables
mean
standard deviation
p5
p95

ten-year change

log growth in value-added labour productivity
0.11
0.49
-0.60
0.85

log growth in capital/labour ratio
0.32
2.20
-1.61
2.36

log growth in employment
0.11
0.54
-0.71
0.99

ten-year change

share of immigrants
0.58
9.36
-15.11
14.71

share of recent immigrants
-0.28
8.71
-15.15
11.11

share of established immigrants
0.86
6.00
-7.02
10.53

share of official language immigrants
1.07
6.73
-8.85
12.07

share of non-official language immigrants
-0.49
5.10
-8.86
5.33

share of skilled principal immigrants
0.38
3.85
-4.90
6.21

share of immigrants in other classes
0.20
7.47
-12.26
10.97

share of high-skilled immigrants
0.05
3.81
-5.67
5.49

share of non-high-skilled immigrants
0.52
7.46
-11.52
11.50

share of stem immigrants
0.06
2.00
-2.33
2.52

share of non-stem immigrants
0.52
8.79
-14.02
13.58

share of university-educated immigrants
0.90
3.96
-3.61
7.41

share of immigrants with lower education
-0.32
7.52
-13.60
9.89

average over the sample period

share of immigrants
13.50
28.99
0.00
100.00

share of recent immigrants
7.75
21.86
0.00
58.33

share of established immigrants
5.75
18.44
0.00
40.00

share of official language immigrants
8.82
22.88
0.00
66.67

share of non-official language immigrants
4.68
16.37
0.00
33.33

share of skilled principal immigrants
3.67
14.27
0.00
23.08

share of immigrants in other classes
9.83
23.97
0.00
75.00

share of high-skilled immigrants
3.22
13.29
0.00
20.00

share of non-high-skilled immigrants
10.28
24.48
0.00
75.56

share of stem immigrants
0.99
7.43
0.00
0.83

share of non-stem immigrants
12.51
27.67
0.00
100.00

share of university-educated immigrants
4.13
16.09
0.00
25.00

share of immigrants with lower education
9.37
23.38
0.00
66.67

Statement: the smallest change was for the stem immigrants of average over the sample period.
Question: what is the smallest change of average over the sample period?
Answer: share of stem immigrants