Have the following data
The Country 1960 1970
A 5 to 10
6, 12 B
7 to 14 C
September 16 D

Want to be the following format
The Country Year Amount
A 1960
A 1970 10
B 1960
1970 12 B
C 1960 7
1970 14 C
D 1960
D 1970 16