England: 25 (excluding 10 shared victories)
Wales: 24 (excluding 11 shared victories)
France: 16 (excluding 8 shared victories)
Scotland: 14 (excluding 8 shared victories)
Ireland: 11 (excluding 8 shared victories)
Italy: 0
Grand Slams won:England: 12
Wales: 10
France: 8
Scotland: 3
Ireland: 2
Italy: 0
Triple Crowns won:England: 23
Wales: 19
Ireland: 10
Scotland: 10
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Australia and South Africa are both joint on winning two world cups. England and New Zealand have won it once each.