strong confidence vs high confidence

Some examples from the web:

• On many occasions in Sweden I have also expressed a strong confidence in the Swedish labour market model which has been developed around our Swedish collective agreements.
• This reflects the progress that the Bulgarian Government has made in recent years, which resulted in strong confidence on the part of all those involved and the ability to assume all membership obligations by January 2007.
• The robustness of non-residential investment mainly reflected favourable financing conditions, rising corporate profits and strong business confidence.
• It is imperative that a strong relationship of confidence be built up again between Europeans and their institutions.
• Portugal's justifiable request for an increase in the size of its grant from the Solidarity Fund has received a strong vote of confidence here today.
• A conference of international donors will also be needed to send out a strong signal of confidence to investors.
• It is impossible to build a strong Europe without confidence in the value of the commitments we have made.
• Despite the abatement of the geopolitical tensions in the course of the spring, it gradually became evident that a strong recovery in confidence and economic activity was unlikely to materialise in the near future.
• We are in fact looking to the Commission to show not the passive attitude of a mediator but the leadership of a political executive strong in the confidence massively expressed by Parliament scarcely a month ago, to quote President Borrell.
• My second comment concerns terrorism, where the open society must combat terrorism with the means available to open society and with strong self-confidence, and not give in to intrusive measures.
• He likened the successive Council presidencies to a chain, of which each part must be strong, and expressed confidence in Finland's ability to guide the Union's affairs.
• Your confidence leaves me with a strong impression.
• I guess self-confidence is not my strong suit.
• Strong growth in employment underpinned consumer confidence and contributed to the growth in household disposable income.
• If freedoms are complemented by clear obligations on suppliers and strong consumer protection, we can strengthen consumer confidence.
• CONTINUED STRONG HOUSEHOLD FINANCING Household borrowing remained strong in 2006, underpinned by favourable financing conditions, strong housing market dynamics and improved consumer confidence.
• The Commission President's promises of improvements, which were given under strong political pressure, cannot revive our confidence.
• Europe does, however, hold some strong cards, and it can restore confidence in those who have lost it.
• A strong public sector with a well developed social insurance system is the surest way to strengthen people's confidence in the future.
• Strong penalties are needed across the EU to prevent this type of crime from undermining consumer confidence and retarding the development of the Information society.

Some examples from the web:

• It is important that Notified bodies throughout the European Economic Area are able to assess conformity in a competent, impartial and consistent way and that a common reference and high confidence in the system behind the notification is ensured.
• The current crisis revealed weaknesses in the methods and models used by the agencies to rate structured finance instruments that were financially engineered to give high confidence to investors, and in the agencies» communication with the markets and investors both about the
• Even with missing pieces, I've got a high confidence hit.
• And this gave us very high confidence for what we were looking at.
• In addition, because of the desire to avoid any legal risk, the Commission sets a very high confidence level as a preliminary to action, thereby deferring the date of its decision and hence reducing the effectiveness of the measure.
• We have high confidence in the expanded air-strike option, Mr. President.