year:
1999: 17 concerts
2000: 59 concerts
2001: 53 concerts
2002: 44 concerts
2003: 57 concerts
2004: 7 concerts
2005: 63 concerts
2006: 74 concerts
2007: 3 concerts
2008: 35 concerts

month:
january: 8 concerts
february: 35 concerts
march: 24 concerts
april: 52 concerts
may: 20 concerts
june: 32 concerts
July: 60 concerts
august: 41 concerts
september: 38 concerts
october: 44 concerts
november: 49 concerts
december: 9 concerts

day of month:
1: 16 concerts
2: 13 concerts
3: 14 concerts
4: 15 concerts
5: 14 concerts
6: 15 concerts
7: 17 concerts
8: 12 concerts
9: 13 concerts
10: 10 concerts
11: 14 concerts
12: 19 concerts
13: 15 concerts
14: 17 concerts
15: 13 concerts
16: 18 concerts
17: 14 concerts
18: 11 concerts
19: 15 concerts
20: 12 concerts
21: 12 concerts
22: 10 concerts
23: 13 concerts
24: 15 concerts
25: 13 concerts
26: 9 concerts
27: 16 concerts
28: 13 concerts
29: 13 concerts
30: 7 concerts
31: 4 concerts