I have no figures. Start with the threshold of what is reported as injured/wounded, it varies. Allied day fighter operations were mostly offensive during the war, so you need to find references that distinguish between PoW Safe and PoW hurt, and then decide whether it counts for example if the injury is from a bad parachute landing or time spent in the dinghy. The Battle of Britain has been heavily studied but try and find a list that gives aircrew hurt figures, not just killed/missing and prisoner. The 9th Air Force reports its ETO fighter groups combat losses were 162 killed, 1,393 missing, 87 seriously and 127 lightly wounded, now just break down the missing into killed, captured safe, captured wounded.
Then when it comes to the count things like the US Adjutant General's report gives US army combat deaths as 216,005, the Surgeon General's report gives 213,030, and the US army rarely lost records. The Surgeon General's report gives 192,220 killed in action, 20,810 died of wounds, 723,560 wounded in action (599,724 admitted to hospital) (remembering people could be wounded more than once) and 16,793 "Other battle deaths", including deaths as prisoners of the enemy. Died of wounds was defined as death after reaching an aid station, otherwise it was killed in action. Disease deaths 14,904, nonbattle injury deaths 61,503, total deaths 306,230. Note in 1944/45 the US Army hospitals had 1,061,370 admissions for non battle injuries and another 7,664,995 admissions for disease.
Since it was the US Army Air Force there is a good chance the above include the USAAF battle casualty report of 40,061 died, 18,238 wounded and evacuated, 63,568 missing, interned and captured. ETO 19,876 died, 8,413 wounded and evacuated, 35,121 missing, interned and captured. USAAF aircraft accidents in the US December 1941 to August 1945 reported 14,903 deaths.
Remembering for a time the US forces in Southern France were officially Mediterranean for a while, the US Army in the ETO reports Battle Casualties as 104,812 killed in action, 360,661 wounded returned to duty, 16,012 died of wounds, 56,646 captured returned to duty, 855 died when prisoners, 12,056 reported as missing but returned to duty, 1,075 missing declared dead, total 552,117. Another reference states non battle casualties came to 417,291. As of June 1944 strength is put at 1,641,143, rising to 3,065,505 in March 1945. The air component of which was roughly steady at around 430,000.
An 8th Air Force June 1944 report noted 38% of successful bomber sorties returned with damage, for every 10 bombers, therefore 100 men MIA, 11 more came back wounded, 5 killed. One report has 8th air force bombers came home with 1,175 dead and 4,689 wounded in the first half of 1944, another that November 1942 to August 1944 returning aircraft carried 299 dead and 3,411 wounded, about half these killed were by flak, 36% cannon fire, 12% machine gun and 1% hit by fragments of their own aircraft. Wounded had a similar break down.
A partial list of Bomber Command losses on bombing sorties has about 1 man reported killed for each 16 declared missing. Bomber Command War Diaries reports deaths by service as 38,462 RAF, 8,919 RCAF, 4,050 RAAF, 1,679 RNZAF, 929 Polish AF, SAAF 34, other dominion AF 27, other allied AF 573.
As of 28 February 1946 Britain reports 755,439 male armed forces casualties, 264,443 killed, 41,327 missing (of whom 6,244 still missing on report date), 277,077 wounded, 172,592 PoW. RAF was 112,296 total, 69,606 killed, 6,736 missing, 22,839 wounded, 13,115 PoW. RN was 73,642 total, 50,758 killed, 820 missing, 14,663 wounded, 7,401 PoW. Female casualties were 1,486 total, 624 killed, 98 missing, 744 wounded, 20 PoW.
British merchant navy (civilian), 45,329 total, 30,248 killed, 4,654 missing, 4,707 wounded, 5,720 PoW. The US Merchant Marine web site notes its casualties, as a percentage of personnel, were higher than any branch of the US armed forces.
American Merchant Marine in World War 2 American Merchant Marine Casualties
Apart from being trapped in whatever you are travelling in if you need to leave a soon to be lost ship or aircraft you cannot just take your time, step off and sit down, the survival equipment has to be available and work long enough to enable rescue, while being wounded makes it harder to rescue yourself or be rescued.
Apart from the usual suspects, look at relevant yearbooks post WWII for things like casualty and activity summaries. I am not sure the ones put out by the occupation government for Japan in both English and Japanese have a military section though.