tabata something else - no rest pullups, pushups, situps, air squats Workout

Pullup (8) 14,13,13,13,12,11,10,8 (94 total reps)
Pushup (11) 14,15,15,14,14,12,11,12 (107 total reps)
Situp (14) 14,14,14,15,15,15,15,15 (117 total reps)
Squat (15) 20,20,19,16,17,15,15,16 (139 total reps)
Tabata score = 48, with 456 total reps

last time I did this was 09/2012 (funny, that time I also got terrible sleep and kendall woke me up a bunch of times in the night)
M/ 38/ 134 lbs/ 5'-6"
Pullups: 12 (96)
Pushups: 14 (119)
Situps: 15 (126)
Squats: 16 (128)
Total Score: 57

total reps is about: 469

No rest between exercises is tough.