Here are some statistics for each trait as of 16:00 PST:

I 71.77% - E 28.23% (General population: I 50.90% - E 49.40%)

N 90.73% - S 9.27% (General population: N 26.90% - S 73.40%)

T 77.16% - F 22.84% (General population: T 40.40% - F 59.90%)

P 49.57% - J 50.43% (General population: P 46.00% - J 54.30%)

And the personality types reported here in comparison to the general population (from the MBTI Manual, 3rd edition, published in 1998):

ISTJ General 11.60% - HN: 2.37%

ISFJ General 13.80% - HN: 0.97%

ISTP General 5.40% - HN: 2.05%

ISFP General 8.80% - HN: 0.86%

ESTP General 4.30% - HN: 0.97%

ESFP General 8.50% - HN: 0.65%

ESTJ General 8.70% - HN: 0.65%

ESFJ General 12.30% - HN: 0.75%

ENTJ General 1.80% - HN: 7.44%

ENTP General 3.20% - HN: 9.91%

ENFJ General 2.50% - HN: 1.94%

ENFP General 8.10% - HN: 5.93%

INTJ General 2.10% - HN: 31.36%

INTP General 3.30% - HN: 22.41%

INFJ General 1.50% - HN: 4.96%

INFP General 4.40% - HN: 6.79%

Edit: Updated statistics at 16:00 PST