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I have never used statistics in my life, so now I'm completely lost.

I have only 3 variables -

the year of the company founding (up to 1993, 1994-2004, 2005-now), the technological intensity of their products (that's either a, b, c or d) and the number of foreign markets (that's either 1, 2, 3 or more)

I would like to check the correlation between the year and the tech. intensity, the year and the number of markets, and the intensity and the number of markets

I understand I'm looking for some sort of correlation, but which coefficient to check - Spearman or Pearson?

And how to get the variables into SPSS? n=850 Do I just put 3 columns one next to each other?

Thanks so much for help!