How many books are in the Little House on the Prairie series original?
9
3
3
3
3
4
2
3
4
2
3
1
4
2
3
1
4
5
2
3
1
4
5
2
3
1
4
5
2
3
1
4
5
2
3
1
4
5
2
3
1
4
5
2
3
1
4
5
2
3
1
4
5
2
3
1
4
5
2
3
1
4
5
6
2
3
1
4
5
6
2
7
3
1
4
5
6
2
0
7
3
1
4
5
6
2
7
3
1
4
5
6
2
7
1
4
5
6
2
7
1
4
5
6
2
7
1
4
5
6
2
7
1
5
6
8
7
1
5
6
8
7
9
5
6
8
7
9
6
8
7
9
6
8
7
9
6
8
7
9
6
10
8
7
9
6
10
8
11
7
9
6
10
8
11
7
9
12
6
10
8
13
11
7
9
12
6
10
8
13
11
7
9
12
6
10
8
13
11
7
9
12
10
8
13
11
7
9
12
10
8
13
11
9
66
4 books
62
2 books
3 books
63