Update including March 1st, 2015:
North America
2012: 0 + 0 + 2 + 7 = 9
2013: 0 + 2 + 11 + 28 = 41
2014: 32 + 16 + 19 + 35 = 102
2015: 30 = 30
Total: 9 + 41 + 102 + 30 = 182
Europe
2013: 0 + 0 + 6 + 8 = 14
2014: 0 + 10 + 45 + 54 = 109
2015: 14 = 14
Total: 14 + 109 + 14 = 137
Asia Pacific (Currently: China, Japan, Australia)
2014: 0 + 3 + 16 + 40 = 59
2015: 13 = 13
Total: 59 + 13 = 72
Global total: 182 + 137 + 72 = 391
2012 total: 9 + 0 + 0 = 9
2013 total: 41 + 14 + 0 = 55
2014 total: 102 + 109 + 59 = 270
2015 total so far: 30 + 14 + 13 = 57
Q1 2013 total: 0 + 0 + 0 = 0
Q2 2013 total: 2 + 0 + 0 = 2
Q3 2013 total: 11 + 6 + 0 = 17
Q4 2013 total: 28 + 8 + 0 = 36
Q1 2014 total: 32 + 0 + 0 = 32
Q2 2014 total: 16 + 10 + 3 = 29
Q3 2014 total: 19 + 45 + 16 = 80
Q4 2014 total: 35 + 54 + 40 = 129
First half of 2014: 32 + 29 = 61
Second half of 2014: 81 + 119 = 209
Q1 2015 so far: 30 + 14 + 13 = 57 (in 60 days)
"About 1 new live Supercharger station per day"
That looks like the going average these days. And that's extraordinary progress.
Update including March 22nd, 2015:
North America
2012: 0 + 0 + 2 + 7 = 9
2013: 0 + 2 + 11 + 28 = 41
2014: 32 + 16 + 19 + 35 = 102
2015: 39 = 39
Total: 9 + 41 + 102 + 39 = 191
Europe
2013: 0 + 0 + 6 + 8 = 14
2014: 0 + 10 + 45 + 54 = 109
2015: 19 = 19
Total: 14 + 109 + 19 = 142
Asia Pacific (Currently: China, Japan, Australia)
2014: 0 + 3 + 16 + 39 = 58
2015: 14 = 14
Total: 58 + 14 = 72
Global total: 191 + 142 + 72 = 405
2012 Global total: 9 + 0 + 0 = 9
2013 Global total: 41 + 14 + 0 = 55
2014 Global total: 102 + 109 + 58 = 269
2015 Global total so far: 39 + 19 + 14 = 72
Q1 2013 total: 0 + 0 + 0 = 0
Q2 2013 total: 2 + 0 + 0 = 2
Q3 2013 total: 11 + 6 + 0 = 17
Q4 2013 total: 28 + 8 + 0 = 36
Q1 2014 total: 32 + 0 + 0 = 32
Q2 2014 total: 16 + 10 + 3 = 29
Q3 2014 total: 19 + 45 + 16 = 80
Q4 2014 total: 35 + 54 + 39 = 128
First half of 2014: 32 + 29 = 61
Second half of 2014: 80 + 128 = 208
Q1 2015 so far: 39 + 19 + 14 = 72 (in 81 days)
"A little less than 1 new live Supercharger station per day"
That looks like the going average these days. And that still is extraordinary progress.