0
middle-aged
4
0
0
2
3
0
0
0
2
1
2
1
1
4
1
2
2
2
0
0
4
0
1
2
3
2
2
1
1
1
1
0
1
1
2
1
2
2
3
1
1
1
1
0
2
2
2
1
1
