Please answer a question about the following article about Southampton:

At the 2001 Census, 92.4 per cent of the city's populace was White—including one per cent White Irish—3.8 per cent were South Asian, 1.0 per cent Black, 1.3 per cent Chinese or other ethnic groups, and 1.5 per cent were of Mixed Race.

What percentage of the white population did the 2001 Census show were White Irish?
one