2009 Swiss referendums
Minaret ban

Choice
Public vote
Public vote
Cantons
Cantons
Cantons
Choice
Votes
%
Full
Half
Total
For
1,535,010
57.50
17
5
19.5
Against
1,134,440
42.50
3
1
3.5
Invalid/blank votes
39,837
–
–
–
–
Total
2,709,287
100
20
6
23
Registered voters/turnout
5,039,676
53.76
–
–
–
Source: Direct Democracy
Source: Direct Democracy
Source: Direct Democracy
Source: Direct Democracy
Source: Direct Democracy
Source: Direct Democracy

Question: How many cantons were there in the 2009 Swiss referendum and out of how many was it?
Answer: In the 2009 Swiss referendums, there were 19.5 cantons out of 23.