The phrase "an exceptionally high proportion" is correct and usable in written English.
It can be used when discussing statistics or data to emphasize that a significant percentage of a group or category is being referenced.
Example: "In the recent survey, an exceptionally high proportion of respondents indicated that they prefer online shopping over traditional retail."
Alternatives: "a remarkably large percentage" or "an unusually high share".
Pandemic is defined (//www.webster.com) as "occurring over a wide geographic area and affecting an exceptionally high proportion of the population".
The longest Formula One season in terms of races will come to an end in China this morning and with it will go an exceptionally high proportion of significant names in the sport's history.
The country boasts an exceptionally high proportion of endemic species coupled with rapid human population growth [17].
At least 81% are endemic, which is an exceptionally high proportion by endemic global standards [ 32].
Although all four countries showed statistically significant results, only Poland had an exceptionally high proportion of ill-defined causes of death, which has been reported previously [ 7, 24].
In Finland, an exceptionally high proportion (58%%) of female doctors were already working as GPs in health centres [ 43] at the time the study took place.
Our work demonstrates that while myofibroblasts were found in various types of endocrine tumors, ileal carcinoids displayed exceptionally high proportion of α-SMA immunoreactive fibroblast-like cells in an extensive stroma.
The exceptionally high proportion of ribosome related functions in IOSRs indicates that ribosome related functions have the highest priority for retrogene formation in mammals.
The exceptionally high proportion of ribosome related functions in IOSRs implies that ribosome related functions have the highest priority for retrogene formation in mammals.
Table 1 shows that the exceptionally high proportion of proteins with TRs in N. vectensis is a unique property of this organism and has not been reported to such an extent even in protozoan parasites.
Elsewhere in Africa, areas of sympatry consistently exhibit very low frequencies of hybrid forms, but a few years ago exceptionally high proportions of M/S hybrids were reported at a few sites near the west coast, with 3% at Dielmo in Senegal (Ndiath et al. 2008), 7% at Njabakunda in The Gambia (Caputo et al. 2008), and 24% at Antula in Guinea-Bissau (Oliveira et al. 2008).
