#month ndat med   sigma peak
200501   15 1.374 0.890 1.1 1.2
200502   15 1.566 0.826 1.3 1.4
200503    5 1.327 0.722 1.0 1.1
200504   19 1.530 0.962 1.2 1.3
200505   19 1.196 0.597 1.0 1.1
200506    5 1.081 0.443 0.9 1.0
200507    4 0.988 0.454 0.5 0.6
200508   11 0.787 0.337 0.7 0.8
200509   16 1.398 0.812 1.2 1.3
200510   11 1.776 0.856 1.4 1.5
200511   15 1.289 0.567 1.1 1.2
200512   13 1.524 0.785 1.3 1.4
2005all 120 1.374 0.814 1.1 1.2