You're right, but we can go with general probability. The largest group of Christians in the world are Roman Catholics, who number 1.2 billion, that's over half of the entire Christian population of the world. The official position of the Roman Catholic Church is that there is no conflict between the science of evolution and Christian teaching. Let's take another large grouping Christians, Orthodoxy, and if we want we can also just speak of the Eastern Churches, both Eastern and Oriental Orthodox. The Eastern Orthodox approach is, essentially, a non-dogmatic one, and one can find Orthodox members on both sides of the issue; though it seems to me that some of the most prominent leaders within Orthodoxy (e.g. the Ecumenical Patriarch, Bartholomew I) are keenly open to the role of modern science in the life of faith. As as I'm aware the Oriental Orthodox have the same standing as the Eastern Orthodox on the issue.
So what about the about 800 million Protestants? Well it really comes down to both denominations and individuals. My own ELCA, the largest Lutheran body in the United States, is agreeable toward evolution, though you'll no doubt find individuals who aren't; likewise the second largest Lutheran body in the US, the LCMS is generally not-agreeable toward evolution, but individuals in the LCMS are. But that's within the United States. When we start to look to old world Lutherans such as the Church of Sweden, the Evangelical Church of Finland, or the Church of Norway, well the fact of the matter is that in Europe the Creationist Controversy is largely a not a thing--you'll find American style Creationists in Europe, but they're usually not members of the older established churches of Europe, but tend to be members of American missionary (read: Evangelical/Fundamentalist) churches whose Modus Operandi will be in keeping with American Evangelicalism and Fundamentalism.
I have spoken to many Christians from Europe who never even heard anyone question evolution until they spoke with American Christians or visited the United States--it's simply not something they realized was an issue because it's not an issue where they're from. There is no controversy where they're from, evolutionary science is accepted in the same way that the roundness of the earth is accepted--they only discover there's any controversy at all through interaction with certain American Christians.
So, I still stand by my statement--most Christians accept evolution, either implicitly or explicitly. It's only an issue for those Christians who have chosen to make it an issue through a particular rigid and wooden reading of Genesis, which has become a litmus test of orthodoxy for modern Fundamentalists in the United States, but it is, largely speaking, an entirely American phenomenon, not a global, Church-wide phenomenon.
Educated Christians from diverse church backgrounds across the world simply don't have an issue with the science of evolution and their faith is not negatively impacted, nor is their faith in the authority of Scripture injured. Because for them the peculiarities of Fundamentalist literalism have never been part of their Christian tradition; such literalism, as a tradition, is a peculiarity of modernity within American Christendom. It's certainly not part of the larger, and much older, patristic-medieval tradition which is much more influential on Catholic, Orthodox, and Protestant thinking than the modernistic traditions of Fundamentalism.
-CryptoLutheran