1. Are the variables in the following columns mutually correlated?
2. Which climatological variables could these be?
3. How should these variables be transformed to make linear correlation clearly visible and significant?

38 1
70 2
138 3
194 4
284 5
297 6
291 7
238 8
150 9
93 10
36 11
29 12

The columns are separated by a space, which is accepted as a column separator in the SDC. You should use Data →Text to columns after copying if you use Excel.