in this two years vs in these two years

Some examples from the web:

• By adopting this measure as it stands, we would stand the risk of depriving ourselves of medicinal products which, when this law entered into force, happened to be in this two-year period.
• I've been in this relationship two years longer than you.
• In fact, it makes sense, 'cause let's face it, I've been in this relationship two years longer than you.
• We now see the crisis coming to country after country because of a deliberate policy that Mr Schulz and others defended in this Parliament two years ago.
• We passed resolutions in this House two years ago about the trade in human organs transplanted from executed people.
• I would ask the rapporteur, if possible, to take on board an idea which I put forward in this House two years ago and am still trying to get support for, which is a charter of carers' rights.
• First of all my message is very much to you, Mr Schulz, because I want you to remember what you argued here in this Parliament two years ago.
• My husband hasn't left this farm in over two years.
• That's why he put a mole in this family for two years.
• I have now sat in this Parliament for two years.
• I want to look specifically at the four headings that Commissioner Bangemann identified in his new communication which, no doubt, we will be discussing in this House in two years' time - because of the length of time it takes us to deal with things.
• Six years ago, I was a nanny in Honolulu for this beautiful two-year-old boy.
• I haven't thought of this case in two years.
• Remember this: in two years, they will be filing for a divorce.
• Well, then he can return to this board in two years and try a more convincing apology... not one fed to him by his attorney.
• Respectfully speaking, of course, we've been handling the voter registration in this town now for two years.
• We have made a good start on this in the past two years.
• RECOMMEND that the Member States submit a report to the Commission on measures taken in application of this Recommendation two years after its adoption.
• Amendment 35, recommending that the Member States submit a report to the Commission on measures taken in application of this Recommendation two years after its adoption.
• We will continue to pursue this idea in two years time when the issue should return to us.

Some examples from the web:

• In this regard it was also considered that it is irrelevant that circumstances were different in these two years.
• In this regard it was also considered that it is irrelevant that circumstances were different in these two years.
• The costs for tunnelling 2006 to 2007 are the estimated costs to the company of extending the mine in these two years (point 9).
• Your husband... in these two years... has been very... very near to us.
• [My very first exhibition,] [and the sight of me, who have grown so much in these two years.]
• It's the report of the achievement in these two years.
• In my view, Member States have enough time in these two years to prepare for the introduction of the directive.
• In fact, since its creation in 1992, Teracom has only made losses in these two years - 2001 and 2002.
• He wants to see how well you can think... and what you have learned in these two years... and whether you can think logically.