Return period

(year)

10

20

50

100

350

500

Return level

2.41

2.52

2.59

2.62

2.64

2.65

Standard errors

0.0935

0.0621

0.0305

0.0186

0.0181

0.0193

95% CI

[2.22, 2.59]

[2.40, 2.64]

[2.53, 2.65]

[2.58, 2.66]

[2.61, 2.68]

[2.61, 2.68]