May I say unbelievable great and thank you so much for helping. I will try to adapt it to the original table which I managed from the first help. The error n/a is great by the way as it simply indicates "not available" to me which is exactly what I want in the cell anyway so I cannot express how thankfull I am.

Although a bit of warning I might come and ask again for help......

Thanks all and have a great day!