Thanks squibb, August 2000 I think so it'll just squeak through.They have stuffed us on pricing it seems. News to me, but I haven't been on their website recently.
Your GS should be Euro 1; check here ............. http://www.urbanaccessregulations.eu/low-emission-zones-main/what-emissions-standard-is-my-vehicle
However, unless it was registered after 01 June 2000 les grenouilles won't oblige with an emissions sticker as I understand it. They drew a line in the sand, so if your bike was registered prior to this, it cannot enter the designated EZ cities whatever - don't try any fancy stuff to circumnavigate the rule; they will still take your money but won't send the sticker, just to make your day.
Edit: However, that was when it was registered NOT when it was manufactured which very well may have been before June, if that makes any difference.