Vladimir,

You are quite welcome. This is what distinguished Canadian-American dynamical astronomer Simon Newcomb wrote more than a hundred years ago:

"The transits of Venus across the sun's disk are among the rarest phenomena in astronomy. For many centuries past and to come there will be a regular cycle, bringing about four transits in two hundred and forty-three years. The intervals between the transits are one hundred and five and a half years, eight years, one hundred and twenty-one and a half years, eight years, then one hundred and five and a half years again, and so on.

The dates of the last six transits and the two next to come are as follows:

     1631, December 7,     1874, December 9,

     1639, December 4,     1882, December 6,

     1761, June 5,                2004, June 8,

     1769, June 3,                2012, June 6.

It will be seen that no person now living is likely to see this phenomenon, as the next transit does not occur until 2004. Yet, the time when Venus will appear upon the disk on June 8 of that year can now be predicted for any point on earth's surface, within a minute or two." (Astronomy for Everybody, Garden City Publishing Company, New York, 1902.)

When Newcomb published these words in 1902, he ended by talking about the transit of Venus of 2004 that happened just eight years ago, which no one then living would ever live to see.

Now I repeat Newcomb's words, updated to 2012: after the transit of 2012 June 5-6, it is likely that no person now living will see the next pair of Venus transits, predicted to occur on 2117 December 11 and 2125 December 8.