0 happening because of good luck -- afortunadamente
Luckily I had some money with me.
1 indicates sth lucky happened -- afortunadamente
However, that, luckily, was not the end of the story.
Luckily, all parties were prepared to support this proposal in the end.
Luckily, the newspaper has produced a series of revelations.
Luckily, this exchange was avoided thanks to the sense of responsibility demonstrated by both sides.
Working on the regulation in committee sometimes involved some very ambitious notions, which, luckily, we abandoned.
Luckily, there is unanimity here too.