| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | | Year-1965 | | | | | | | | | | | | 1 | 1 | | Year-1966 | | | | 1 | | | | | | | | 1 | 2 | | Year-1967 | 1 | 1 | 1 | 1 | 1 | 1 | | 1 | 1 | | 1 | 1 | 10 | | Year-1969 | | | | 1 | | | | | | | | | 1 | | Year-1972 | | | 2 | | | | | | | | | | 2 | | Year-1973 | 1 | 1 | 1 | 2 | 1 | | 1 | | 1 | 1 | 1 | 1 | 11 | | Year-1974 | | | | | 1 | | 1 | | 1 | | | 1 | 4 | | Year-1975 | | 1 | 1 | | | | | | 1 | 1 | | | 4 | | Year-1977 | | 1 | | 1 | | | | | | 2 | 1 | 1 | 6 | | Year-1979 | | | | | | | 1 | | | | | | 1 | | Year-1980 | | | | | 1 | | | 1 | | | 2 | | 4 | | Year-1981 | | |
| | 1 | |
| | |
| | |
1 | | Year-1982 | |
| | |
| | |
| | |
| 1 |
1 | | Year-1983 | | 1 | 1 | 1 | | | | | | | | | 3 | | Year-1984 | 2 | 2 | | | | | | 2 | 2 | 1 | 2 | 1 | 12 | | Year-1985 | | 2 | | | | | 1 | | 2 | 1 | | 1 | 7 | | Year-1986 | 2 | 2 | 2 | 2 | 3 | | 2 | 1 | | | | | 14 | | Year-1987 | | 2 | | | | | 1 | | | | 2 | | 5 | | Year-1988 | | | | | | | | | 1 | | | | 1 | | Year-1989 | | | 1 | 2 | 1 | | | | | | | 2 | 6 | | Year-1990 | 2 | 3 | 3 | | 2 | 3 | 4 | 3 | 2 | 2 | 2 | 4 | 30 | | Year-1991 | 2 | 2 | 3 | 3 | 4 | 3 | 3 | 1 | 2 | 1 | 2 | 3 | 29 | | Year-1992 | 1 | 2 | | 1 | 2 | 2 | 1 | 1 | | 2 | 1 | | 13 | | Year-1993 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 15 | | Year-1994 | 1 | 1 | 2 | 2 | 1 | 1 | 2 | 2 | 1 |
| 2 | 2 |
17 | | Year-1995 | 3 | 2 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 20 | | Year-1996 | 1 | 2 | 1 | 1 | 1 | 3 | 2 | 2 | 1 | 1 | 2 | 3 | 20 | | Year-1997 | 2 | 2 | 4 | 2 | 1 | | | | | 1 | 1 | | 13 | | Year-1998 | 2 | 2 | 2 | 2 | 1 | 4 | 3 | 1 | 2 | 2 | 1 | 2 | 24 | | Year-1999 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 2 | | 3 | 2 | 3 | 24 | | Year-2000 | 2 | 2 | | 2 | 2 | 2 | 2 | 3 | 2 | 3 | 2 | 4 | 26 | | Year-2001 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 13 | | Year-2002 |
| | |
| 1 | |
| | |
| 1 | 1 | 13 | | Year-2003 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 17 | | Year-2004 | 2 | 2 | 2 | 3 | 1 | 2 | 1 | 2 | 1 | 1 | 1 | 2 | 20 | | Year-2005 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 2 | 3 | 18 | | Year-2006 | 1 | 2 | 2 | 2 | 9 | 2 | 1 | 2 | 2 | 3 | | 2 | 28 | | Year-2007 | | 1 | 2 | 1 | 6 | 7 | 5 | 6 | 1 | 1 | | 2 | 32 | | Year-2008 | | | | | | | 1 | | | | | | 1 |
|
