How many albums did The Beatles release in 1963?
2
3
3
4
3
4
3
4
5
3
4
5
3
4
5
3
4
5
2
3
4
5
2
3
4
5
2
3
4
5
2
3
4
5
2
3
4
5
2
3
4
5
6
2
3
4
5
1
6
2
3
4
5
1
6
2
3
4
5
1
7
6
2
3
4
5
1
7
6
2
3
4
5
1
7
6
2
3
4
5
1
7
6
2
3
4
5
1
7
6
2
4
5
1
7
6
2
5
8
1
7
6
2
5
8
1
7
6
2
8
1
7
6
2
8
1
7
6
2
0
8
1
7
6
2
0
9
11
8
1
7
6
9
11
8
1
7
6
12
13
9
11
8
1
7
6
12
10
13
9
11
8
1
7
6
12
10
13
9
11
8
1
7
6
12
10
13
9
11
8
1
7
6
12
10
13
9
11
8
1
7
14
12
10
13
9
11
8
7
14
12
10
13
16
66
62
66
62
63
63
57