[jaclaz]

>Everybody knows their personnummer by heart, while in Italy most people carry their health card around with the 16-character codice fiscale.

Cannot say about Sweden, but most people I know in Italy also know by heart their Codice Fiscale (whether they carry with them nonetheless the card is another thing).

[piaste]

I know mine by heart and I still get mildly surprised reactions every now and then when I give it to an office worker.